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Applied Physiology, Nutrition and Metabolism
Journal Prestige (SJR): 1.112 ![]() Citation Impact (citeScore): 2 Number of Followers: 38 ![]() ISSN (Print) 1715-5312 - ISSN (Online) 1715-5320 Published by NRC Research Press ![]() |
- 2025 Scientific Abstracts: Canadian Nutrition Society Annual Conference
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Pages: S1 - S90
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page S1-S90, January 2025.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-28T07:00:00Z
DOI: 10.1139/apnm-2025-0079
Issue No: Vol. 50 (2025)
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- Canadian Society for Exercise Physiology Annual Conference
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Pages: S1 - S83
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page S1-S83, January 2025.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-12T08:00:00Z
DOI: 10.1139/apnm-2024-0513
Issue No: Vol. 50 (2025)
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- Reliability of the two-point method applied in field conditions and its
validity in estimating the one-repetition maximum using the
load–velocity relationship of the free-weight back squat-
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Authors: Afonso Fitas, Pedro Pezarat-Correia, Goncalo V. Mendonca
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
In most studies examining the reliability and validity of the load–velocity relationship (LVR) determined with the two-point method, a pair of points derived from a previously applied protocol involving multiple loads is selected to compute the relationship (multipoint method–MP). While testing only two loads (two-point applied in field conditions–2PFC) allows for a reliable free-weight back squat LVR determination, it is not known whether the average optimal minimum velocity threshold enables accurate one-repetition maximum (1RM) estimations. LVRs based on the 2PFC were compared to those obtained with the MP, in 18 participants. Reliability of LD0 (load at zero velocity), slope, V0 (velocity at zero load), and Aline (area under the line) determined with the 2PFC was assessed with intraclass correlation coefficients (ICCs) and coefficients of variation (CVs). Absolute percent errors of estimation were compared between MP and 2PFC. Agreement between actual and predicted 1RM was assessed with Bland–Altman plots. LVR parameters were similar between profiling methods. The 2PFC showed acceptable reliability (CVs 0.70). The absolute percent error of estimation was lower with the 2PFC (6.7% and 4.6%, for MP and. 2PFC respectively). Coaches can determine the LVR of their athletes and further estimate their 1RM relying on the average optimal MVT (with small error < 5%). This can be done by simply measuring mean concentric velocity in response to a practical protocol of two loads. However, caution is advised, as this method may misestimate the 1RM by 14 kg in some individual cases.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-05-16T07:00:00Z
DOI: 10.1139/apnm-2024-0546
Issue No: Vol. 50 (2025)
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- Sedentary time in older adults: absolute versus relative measures and
their respective association with health conditions and multimorbidity-
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Authors: René Maréchal, Ahmed Ghachem, Isabelle J. Dionne
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
Older adults (OA) accumulate a greater amount of sedentary time (ST) compared to other subgroups of the population, which is associated with deleterious effects on multiple health outcomes and mortality. This study compared absolute sedentary behavior time (ASBT), which is generally used in studies, to relative SB time (RSBT), defined as the percentage of daily wake time, for their respective association with health conditions and multimorbidity. Two-thousand-four-hundred-sixty-one older adults (65–79 years) participated in the Canadian Health Measures Survey (2007–2017) and wore an accelerometer for ≥4 days, including a weekend day. Information regarding six health condition categories was extracted: cancer, cardiovascular, metabolic, musculoskeletal, psychological, and pulmonary. We combined these health conditions to create a multimorbidity variable. Participants were divided into ASBT quartiles and RSBT quartiles. Comparing the most sedentary (Q4) to the least sedentary (Q1) groups, we found no significant associations with any health conditions for ASBT. However, the same comparison for RSBT showed that RSBT-Q4 (the most sedentary; n = 660), compared to RSBT-Q1 (n = 660), was associated with a significant (p 110), cardiovascular (422 > 326), metabolic (276 > 194), and musculoskeletal (407 > 345), as well as multimorbidity (462 > 350). After adjusting for confounding factors (moderate to vigorous physical activity, housing, income, education level, relationship status, accelerometer wear season, and status of drinking and smoking), these associations persisted with the exception of musculoskeletal conditions. These results demonstrate that RSBT could be more appropriate to capture the association between a sedentary lifestyle and health profiles in older adults.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-05-06T07:00:00Z
DOI: 10.1139/apnm-2024-0545
Issue No: Vol. 50 (2025)
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- The conversation around malnutrition: a qualitative study of dietitian and
patient perspectives-
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Authors: Michelle St-Jacques, Nancy Verdin, Jennifer Easaw, Shelly Longmore, Marlis Atkins, Catherine Chan, Chelsia Gillis
Pages: 1 - 11
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-11, January 2025.
Malnutrition is prevalent among older adults in Canada and it can be mitigated through personalized dietitian-led counselling. This qualitative study aimed to explore how malnutrition is communicated and perceived, providing insight for future care. This multisite qualitative study was conducted in Alberta and Quebec, Canada. Participants were recruited through purposive sampling to target patients ≥65 years old who spoke French or English, had a malnutrition diagnosis, and received counseling for malnutrition from a dietitian. Dietitians who had worked directly with patients ≥65 years old with a diagnosis of malnutrition were recruited through advertisement. Semi-structured interviews were recorded both in person and over the phone. Data were transcribed verbatim and analyzed using reflexive thematic analysis. Twenty-five patients and 10 dietitians were interviewed, producing five themes (two dietitian themes and three patient themes). First, diagnosing malnutrition: dietitians highlighted challenges in diagnosing malnutrition due to limited support and resources. Second, using the “M” word: dietitians hesitated to use the term “malnutrition” with patients. Third: knowing I'm malnourished: patients reported not being informed of their diagnosis. Fourth, what is malnutrition' Patients revealed the word sounds extreme and unrelatable. Reactions to the diagnosis varied: acceptance, shock, detached, and neutral. Finally, stigma and blame: some patients distanced themselves from the stigma by rationalizing their nutrition problems. Gaps in management of malnutrition were identified. Future research should focus on how to communicate the diagnosis to improve outcomes for malnutrition.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-05-06T07:00:00Z
DOI: 10.1139/apnm-2024-0522
Issue No: Vol. 50 (2025)
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- Ultra-processed food consumption: an exploration of social determinants
among Black children of African and Caribbean descent in Ottawa-
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Authors: Valérie Levacher, Malek Batal, Isabelle Giroux, Dia Sanou, Rosanne Blanchet
Pages: 1 - 12
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-12, January 2025.
Consumption of ultra-processed foods (UPF) is a growing concern due to its negative impact on diet quality and health outcomes. To our knowledge, no data on UPF consumption are available for specific racial/ethnic children, including Black children, in Canada. This cross-sectional study aimed to explore the social determinants of UPF consumption among Black children of African and Caribbean descent in Ottawa. It included 174 mothers born in the Caribbean or Sub-Saharan Africa and their children aged 6 to 12. A survey was administered to assess demographic and socio-economic characteristics of mothers, children, and households. Children’s dietary intakes were evaluated with a 24 h dietary recall to calculate the proportion of energy from UPF according to the NOVA food classification system. ANOVA and two-step cluster analysis were performed. Identified clusters were compared using chi-square and Student’s t tests. Findings indicate that children whose mothers had been living in Canada longer (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-28T07:00:00Z
DOI: 10.1139/apnm-2024-0525
Issue No: Vol. 50 (2025)
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- Effect of sleep restriction, with or without prior evening exercise, on
morning postprandial lipemia-
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Authors: Alan C. Maloney, Matthew J. McDonald, Gregory F. Petroski, Jill A. Kanaley
Pages: 1 - 10
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-10, January 2025.
Sleep restriction (SR) impairs postprandial glycemia following a high-glucose challenge and exercise improves it, but their combined impact on postprandial lipemia in response to a high-fat challenge remains unknown. This project investigated whether one night of SR impairs morning postprandial lipemia and if prior evening exercise influences the response. We hypothesized SR would induce an exaggerated postprandial lipemic response to a high-fat morning challenge and that prior evening exercise would fully or partially ameliorate these impairments. In 10 sedentary individuals with overweight or obesity (females: 4, age: 28.1 ± 3.8 years, body mass index: 30.4 ± 2.2 kg/m2), we compared the effects of one night of SR (4 h) to normal sleep (8 h), with and without prior moderate-intensity aerobic exercise (45 min, 65% VO2max), on postprandial lipemia and satiety following a standardized high-fat morning challenge (4 h). Spline regression was used to compare differences in the time course of the blood-based outcomes between exercise and sleep conditions. No significant differences were observed in fasting or 2 h concentrations of glucose, insulin, non-esterified fatty acids, or triglyceride, areas under the curves, indexes of metabolism, or satiety between conditions. However, exercise had an interaction between the spline term and exercise and sleep conditions (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-28T07:00:00Z
DOI: 10.1139/apnm-2024-0535
Issue No: Vol. 50 (2025)
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- Professional development preferences and needs of healthcare providers
working with older adults on exercise and nutrition: results of key
informant interviews-
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Authors: Christine M Mills, Lora Giangregario, Laura Middleton, Andrew D Robertson, Heather H Keller
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
Most older adults want to age in place, and evidence-based health behaviours that support aging in place include healthy diets and physical activity. Healthcare professionals need training in the science and practice of nutrition and physical activity to support their older adult clients to age in place. In this study we investigated knowledge gaps among healthcare professionals and the organizations that employ them regarding exercise and nutrition for older adults. We also aimed to identify their perceptions of effective and ineffective continuing education approaches, how they choose continuing education opportunities, and what formats they prefer when engaging in continuing education. Using key informant interviews and an interpretive description approach, we identified four themes: “Being pragmatic about professional development”, “Matching format to need”, “Negotiating the tension between the convenience of online and the effectiveness of in-person learning”, and “Focusing on practice is critical”. Participants also identified current gaps in professional development offerings and desires for additional continuing education opportunities on certain topics, such as nutrition and aging, and dealing with multimorbidity. Participants indicated that continuing education offerings should reflect common health conditions that providers encounter in practice and that there should be a balance between online and in-person offerings. Participants also indicated that continuing education should focus on changing or improving practice, to assist healthcare providers in supporting older adults aging in place in their communities.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-28T07:00:00Z
DOI: 10.1139/apnm-2024-0451
Issue No: Vol. 50 (2025)
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- History and perspectives on interval training in sport, health, and
disease-
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Authors: Carl Foster, Arturo Casado, Daniel Bok, Peter Hofmann, Marius Bakken, Asle Tjelta, Juan Garcia Manso, Daniel Boullosa, Jos J. de Koning
Pages: 1 - 16
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-16, January 2025.
Exercise can be conducted as low-intensity continuous training (LICT) or a variety of higher intensity work/rest formats, collectively called interval training. Interval training was developed for athletes in the early 20th century. It was systemized in Sweden as Fartlek, and in Germany as die interval Method, in the 1930s. Most contemporary forms of interval training evolved from these progenitors. In essence, interval training allows a large volume of high-intensity or race specific training to be performed while controlling the development of fatigue. Adding interval training to LICT done by athletes adds about 2%–4% to performance achievable with LICT, which represents a competitively meaningful difference in performance (e.g., 4:25 vs. 4:00 over 1 mile). More recently, interval training has been applied to health- fitness participants and even to patients with health conditions. Studies indicate that a comparatively low volume of interval training can produce substantial improvement in physiologic capacity, in as little as 20% of training time versus LICT. There are data indicating that interval training can be reasonably pleasant, have good adherence, and is safe, even in patients. Although interval training was originally designed for athletics, the fundamental patterns of work versus recovery are remarkably similar in healthy adults and patients. Although the total volume of training and both absolute and relative intensity and magnitude of homeostatic disturbance are larger in athletes, the overall pattern of effort is the same in fitness participants and patients. Interval training can thus be characterized as an important step in the evolution of exercise training.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-28T07:00:00Z
DOI: 10.1139/apnm-2023-0611
Issue No: Vol. 50 (2025)
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- Frequency of food marketing in recreation and sport facilities differs by
presence of food sponsorship agreements and food service contracts in
Canada-
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Authors: Rachel Prowse, Melanie Warken, Trudy Tran, Dana Lee Olstad, Sara FL Kirk, Kim D Raine, Erin Hobin
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
We aimed to evaluate whether food marketing frequency in recreation and sport facilities (RSFs) in Canada differed by the presence of food sponsorship policies, food sponsorship agreements, and food service contracts. We conducted a cross-sectional study of 85 RSFs using an observational audit using the Food and Beverage Marketing Assessment Tool for Settings (FoodMATS) and a facility survey. All instances of food marketing in RSF were recorded in the FoodMATS and the presence of food sponsorship policies, food sponsorship agreements, and food service contracts from the last fiscal year were reported in the survey by facility managers/directors. Mann–Whitney U tests evaluated differences in food marketing frequency by presence of policies (yes/no), agreements (1+/0), and contracts (1+/0). Food marketing frequency did not differ between RSF with and without a food sponsorship policy (14.5 vs. 18.0, p = 0.37). Food marketing frequency was significantly greater in RSF with food sponsorship agreements (26.5 vs. 12.5, p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-22T07:00:00Z
DOI: 10.1139/apnm-2024-0517
Issue No: Vol. 50 (2025)
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- Saliva insulin concentration following ingestion of a standardized mixed
meal tolerance test: influence of obesity status-
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Authors: Hossein Rafiei, Jonathan Peter Little
Pages: 1 - 8
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-8, January 2025.
Early detection of hyperinsulinemia may help identify and prevent metabolic diseases, but accurate insulin measurement is challenging, costly, and requires blood samples. This study aimed to characterize saliva insulin responses to a standardized meal tolerance test in people with different body mass index (BMI) classes to help develop potential saliva insulin thresholds based on varying levels of insulin resistance. A total of 94 healthy normoglycemic adults (aged 18–69 years, fasting blood glucose 5.2 ± 0.5 mmol/L) were recruited, categorized into groups with normal weight (NW, n = 41), overweight (OW, n = 23), and obesity (OB, n = 30). Participants fasted for ≥4 h and then consumed a standardized liquid meal (350 kcal; 45 g carbohydrate, 20 g protein, 11 g fat). Saliva samples and finger prick blood glucose were collected at fasting, 60 min, and 90 min post-meal. Saliva insulin levels at all time points were significantly higher in the group with OB compared to OW (all P ≤ 0.02) and NW (all P ≤ 0.001). The OW group also had higher insulin levels compared to NW (all P ≤ 0.02). No significant differences in fasting and post-meal glucose levels were found among groups (all P ≥ 0.12). Strong positive correlations were observed between obesity markers (waist circumference, BMI) and saliva insulin levels. Preliminary cut-off values for fasting (∼16 pmol/L), 60 min (∼97 pmol/L), and 90 min (∼115 pmol/L) saliva insulin may delineate between normal and hyperinsulinemic responses. Saliva insulin can effectively differentiate hyperinsulinemic responses among normoglycemic individuals with varying body weights and waist circumference, suggesting its potential as a non-invasive screening tool for metabolic disease risk.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-17T07:00:00Z
DOI: 10.1139/apnm-2024-0532
Issue No: Vol. 50 (2025)
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- Resilience capacity in older women engaged in resistance training:
physiological and functional adaptations to training interruption imposed
by the COVID-19 pandemic followed by retraining-
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Authors: Marcelo A. S. Carneiro, Paulo Ricardo P. Nunes, Jarlisson Francsuel, Felipe Lisboa, Natã Stavinski, Nelson H. Carneiro, Cláudio O. Assumpção, Marzo Edir Da Silva-Grigoletto, Eduardo L. Cadore, Edilson S. Cyrino
Pages: 1 - 15
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-15, January 2025.
This study analyzed the effects of 2 years of training interruption imposed by the COVID-19 pandemic on muscular strength, body composition, metabolic biomarkers, and physical performance in older women engaged in resistance training (RT). Additionally, to assess resilience capacity, we compared the changes provoked by 12 weeks of retraining with those achieved after 12 weeks of training (pre-pandemic block 1) on physiological and functional outcomes. Muscular strength, body composition, metabolic biomarkers, and physical performance were analyzed at five time points. A progressive RT program was performed during the pre-pandemic block 1 (12 weeks of training) and block 2 (24 weeks). Subsequently, 2 years of training interruption were imposed during the COVID-19 pandemic. After the COVID-19 pandemic, the participants performed 12 weeks of retraining. A significant impairment in all outcomes was observed after 2 years of training interruption compared to pre-pandemic block 2. Retraining did not change muscle mass, lipid profile, and functional motor tests compared to pre-pandemic block 1. When compared to the pre-pandemic block 1, retraining induced greater 1RM gains in the chest press (20.4% vs. 6.2%), leg extension (15.9% vs. −1.0%), preacher curl (31.1% vs. 8.2%), and total lifted load (21.4% vs. 3.6%), and similar fat mass loss at gynoid (−4.9% vs. −3.7%) and trunk (−3.8% vs. −4.2%). The results indicate that two years of training interruption imposed by the COVID-19 pandemic in older women engaged in RT led to worsening physiological and functional outcomes, which did not fully recover/regain after retraining, suggesting low resilience capacity. Novelty Two years of training interruption imposed by the COVID-19 pandemic impair physiological and functional outcomes in older women engaged in resistance training. Retraining led to resilience capacity only in muscular strength gains.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-16T07:00:00Z
DOI: 10.1139/apnm-2024-0551
Issue No: Vol. 50 (2025)
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- Sex modifies the association between cardiorespiratory fitness and insulin
resistance in adults at risk for Alzheimer’s disease-
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Authors: Gabriella M. Mamlouk, Kyle J. Edmunds, Clayton C. McIntyre, Sarah R. Lose, Mark Sager, Sanjay Asthana, Sterling C. Johnson, Bruce Hermann, Catherine L. Gallagher, Barbara B. Bendlin, Dane Cook, Ozioma C. Okonkwo
Pages: 1 - 7
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-7, January 2025.
This study examines whether sex modifies the association between cardiorespiratory fitness (CRF) and insulin resistance in adults at risk for Alzheimer’s disease (AD). This study included n = 1131 (791 females, 340 males; mean age 64.7 years) cognitively unimpaired, nondiabetic participants from the Wisconsin Registry for Alzheimer’s Prevention, a longitudinal observational cohort study enriched with persons with parental history of AD dementia. CRF was estimated using a validated equation, and the homeostatic model assessment for insulin resistance (HOMA-IR) quantified insulin resistance from blood samples. Cross-sectional linear regression models were assembled in a moderation framework to test the interaction between CRF and sex on HOMA-IR scores. Finally, sex-stratified analyses were performed to test within-group associations of CRF and HOMA-IR. CRF was negatively associated with HOMA-IR (β = −0.504, SE = 0.21, p = 0.018) and the interaction of CRF and sex was likewise significant (β = −0.849, SE = 0.18, p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-13T07:00:00Z
DOI: 10.1139/apnm-2024-0526
Issue No: Vol. 50 (2025)
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- Longitudinal associations between mothers’ and fathers’ food skills
and their children's cooking skills-
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Authors: Sandhya Sahye-Pudaruth, David W.L. Ma, Alison M. Duncan, Michael Prashad, Amar Laila, Jess Haines
Pages: 1 - 7
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-7, January 2025.
Since parents serve as role models for their children, their level of food skills may influence their children's cooking skills. Learning how to cook at an early age may lead to better cooking skills and diet quality later in life. The aim of this study was to examine the longitudinal association between parents’ food skills and children's cooking skills using data from the Guelph Family Health Study, a trial of a home-based obesity prevention intervention. Data from 135 families, including 158 children (mean age of 8.9 years; 75.9% White) and their parents (121 mothers and 66 fathers), were included. Parents self-reported their food skills and children self-reported their cooking skills. Linear regression models with generalized estimating equations were used to examine the longitudinal association between parent food skills (as a total food skills score and separately as mechanical and conceptualizing skills) and child cooking skills, adjusted for child age and sex, parent age, household income, and intervention status. Mean overall food skills score (out of a maximum of 4) was 3.65 ± 0.38 for mothers and 3.42 ± 0.52 for fathers; mean cooking skills score for children was 3.36 ± 0.59. Neither mothers’ nor fathers’ food skills were significantly associated with child cooking skills. The findings indicate that despite parents having high overall food skills scores, these food skills do not appear to translate into higher cooking skills scores among their children. Parents may need to directly involve their children in cooking activities to impact their cooking skills. Novelty The findings from this study indicate that despite parents having high overall food skills, neither mothers’ nor fathers’ food skills were significantly associated with their children's cooking skills.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-10T07:00:00Z
DOI: 10.1139/apnm-2024-0519
Issue No: Vol. 50 (2025)
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- Retraction: Magnesium–zinc–calcium–vitamin D co-supplementation
improves glycemic control and markers of cardiometabolic risk in
gestational diabetes: a randomized, double-blind, placebo-controlled trial
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Pages: 1 - 1
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-1, January 2025.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-04-02T07:00:00Z
DOI: 10.1139/apnm-2025-0087
Issue No: Vol. 50 (2025)
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- Investigating the relationship between aerobic fitness and lower-limb
resistance vessel function before and after a bout of uninterrupted
sitting-
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Authors: Sophie E. Rayner, Haoxuan Liu, Jennifer L. Petterson, Myles W. O'Brien, Derek S. Kimmerly
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
Prolonged sitting reduces lower-limb resistance vessel function (RVF), whereas increasing aerobic fitness levels enhance lower-limb RVF. However, it is unknown whether having higher aerobic fitness offers protection against prolonged sitting-induced declines in RVF. This study investigated the relationships between aerobic fitness versus reductions in lower-limb RVF following a 3 h bout of uninterrupted sitting. In 30 healthy young adults (19♀, 24 ± 6 years), aerobic fitness was assessed during a graded, maximal cycling test. Relative peak oxygen consumption (V̇O2peak) was determined via indirect calorimetry (37.5 ± 8.6 (24.7–60.7 mLO2/kg/min). Popliteal blood flow (PBF) was recorded via duplex ultrasonography. Lower-limb RVF was assessed in the seated posture and quantified as the peak PBF and area under the curve (PBFAUC, first minute of hyperemia) responses to 5 min of distal cuff-induced ischemia. The lower-limb RVF assessment was performed before and after a sitting. Peak PBF decreased following sitting (473 ± 254 to 387 ± 199 mL/min, P = 0.024), while PBFAUC remained unchanged (6145 ± 3063 versus 6446 ± 3826 mL, P = 0.758). Relative V̇O2peak was not associated with Pre-sitting peak PBF (R = 0.236, P = 0.210) or PBFAUC (R = −0.026, P = 0.889). Furthermore, relative V̇O2peak was also not associated with sitting-induced reductions in peak PBF (R = −0.145, P = 0.444). The reductions in peak PBF following sitting support previous work demonstrating that prolonged uninterrupted sitting negatively impacts lower-limb RVF. In contrast, prolonged sitting did not alter the PBFAUC response, suggesting that peak PBF responses may provide a more sensitive index of sitting-induced declines in RVF. In young, healthy individuals, aerobic fitness did not impact baseline or sitting-induced reductions in lower-limb RVF.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-27T07:00:00Z
DOI: 10.1139/apnm-2024-0365
Issue No: Vol. 50 (2025)
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- Comparison of maximal glycolytic rate from ergometer to on-water sprinting
in elite canoe polo players-
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Authors: Benedikt Meixner, Manuel Matzka, Billy Sperlich
Pages: 1 - 10
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-10, January 2025.
As a predictor for anerobic performance in many sports, the maximal glycolytic rate (νLamax) is assessed in a laboratory setting. However, differences between lab-based test and a sport specific field setting remain unclear. The aim of this study was to compare ergometer and on-water tests for νLamax in elite youth canoe polo players. Fifteen elite German youth canoe polo players performed a 15 s all-out sprint on a Dansprint ergometer and a 50 m (males) or 40 m (females) all-out sprint on water. Capillary blood samples were taken before and every minute for 8 min after the sprint to determine ΔLa (difference between resting and peak post-exercise blood lactate concentrations). Body composition was assessed using Tanita BC-601 impedance analysis. Power output during the 15 s all-out ergometer sprint showed a high correlation with fat-free mass (r = 0.82) and total lactate production (r = 0.86). A multiple regression model incorporating both parameters improved prediction of power output to 89%. Velocity during the 40 and 50 m on-water sprints correlated moderately with νLamax (r = 0.72) and body-fat percentage (r = −0.62). A considerable difference in both ΔLa and νLamax was evident between ergometer and on-water sprinting. νLamax is positively correlated with mean velocity and power output during on-water and ergometer sprinting, and that body composition significantly influences the relationship between lactate accumulation and performance output. Additionally, performance metrics and capillary blood lactate measurements cannot be simply transferred between ergometer and on-water tests, indicating that ergometer-derived values do not reliably predict on-water performance. Highlights: Maximal glycolytic rate is not transferable between ergometer and on-water settings in canoe players. Calculated glycolytic contribution is highly correlated to power output on the ergometer. νLamax is moderately correlated to on-water performance.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-26T07:00:00Z
DOI: 10.1139/apnm-2024-0450
Issue No: Vol. 50 (2025)
-
- Perspectives on interval training for health and performance
-
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Authors: Jonathan P. Little, Martin J. Gibala
Pages: 1 - 3
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-3, January 2025.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-25T07:00:00Z
DOI: 10.1139/apnm-2025-0061
Issue No: Vol. 50 (2025)
-
- Acute effects of a reformulated plant-based meat alternative compared to
beef within a high-fat meal on inflammatory and metabolic factors: a
randomized crossover trial-
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Authors: Sarah E. Fruit, Natalie G. Keirns, Morgan E. Higgins, Alexis R. Quirk, Jenna K. Schifferer, Olivia R. Romanovich, Amy C. Yakos, Karrie Osborne, Scott W. Trappe, Bryant H. Keirns
Pages: 1 - 11
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-11, January 2025.
Plant-based meat alternative (PBMA) consumption has increased amid significant reformulation efforts. Although reformulated PBMAs have characteristics that could provide cardiometabolic benefits over animal proteins (e.g., higher fiber, certain phytochemicals/micronutrients), their acute health effects remain unclear. Moreover, whether baseline adiposity (i.e., normal weight or overweight/obesity) affects the response to PBMA intake is unknown. We conducted a randomized crossover study where healthy participants (N = 30) with a normal body mass index (BMI; 18.5–24.9 kg/m2; n = 15) or overweight/obese BMI (>25.0 kg/m2; n = 15) consumed two high-fat meals on separate occasions containing a reformulated PBMA (Beyond Meat Cookout ClassicTM) or similar beef product (80% lean ground beef). Meals were matched for energy (950 kcal) and macronutrient matched (71 g fat/31–35 g carbohydrate/41–42 g protein). At each trial, an intravenous catheter was inserted and biomarkers of inflammation (i.e., interleukin (IL)-6, tumor necrosis factor (TNF)-α), intestinal permeability (i.e., lipopolysaccharide binding protein (LBP), soluble CD14 (sCD14), LBP:sCD14 ratio), and metabolic factors (triglycerides, HDL-C, glucose) were measured at baseline and hourly for 4 hours post-meal. Paired t tests and two-way mixed model ANOVAs were used to examine within-meal-condition changes and differences in incremental area under the curve (iAUC) across meal and BMI conditions, respectively. Regardless of protein source, high-fat meals increased IL-6, TNF-α, LBP, sCD14, LBP:sCD14, and triglycerides and decreased HDL-C (p ≤ 0.01). In BMI subgroup analyses, an interaction effect for IL-6 iAUC was observed (pMealxBMI
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-24T07:00:00Z
DOI: 10.1139/apnm-2024-0498
Issue No: Vol. 50 (2025)
-
- Hot water immersion increases internal carotid artery shear rate but does
not alter intracranial vascular reactivity to carbon dioxide-
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Authors: Morgan L. Worley, Courtney E. Wheelock, Jocelyn Stooks, Jacqueline R. Schwob, Brian Bratta, John J. Leddy, Riana R. Pryor, David Hostler, Blair D. Johnson
Pages: 1 - 17
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-17, January 2025.
Acute hot water immersion (HWI) increases cerebral blood flow, which may increase arterial shear rate and benefit cerebrovascular function. However, it is unclear whether HWI alters cerebral artery shear rate and cerebrovascular reactivity to carbon dioxide (CVRCO2). We tested the hypotheses that HWI (39 °C) increases extracranial artery shear rate and intracranial artery hypercapnic CVRCO2, but reduces hypocapnic CVRCO2 compared to temperate water immersion (TWI; 35 °C). Eighteen healthy adults completed two experimental visits. Middle and posterior cerebral artery blood velocities (transcranial Doppler; MCAv and PCAv) were continuously recorded. Right internal carotid artery (ICA) and vertebral artery (VA) shear rate were obtained via Doppler ultrasound. Hypocapnic and hypercapnic CVRCO2 were assessed in the middle cerebral artery (MCA) and posterior cerebral artery (PCA) during self-paced hyperventilation and during 30 s of 7% CO2 inhalation. Measures were completed pre-immersion (PRE) and at 1.0 °C increase in core temperature during HWI and time-matched during TWI. Data are reported as mean ± SD. There were no differences between conditions at PRE. MCAv (64 ± 12 vs. 55 ± 9 cm/s; P = 0.01) and PCAv (39 ± 7 vs. 29 ± 5 cm/s; P
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-21T07:00:00Z
DOI: 10.1139/apnm-2024-0048
Issue No: Vol. 50 (2025)
-
- A content-analysis of job advertisements for exercise professionals in
Canada: a need for clarification of qualifications-
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Authors: Myles W. O'Brien, Madeline E. Shivgulam, Jocelyn Waghorn, Molly K. Courish, Jonathon R. Fowles, Taniya S. Nagpal
Pages: 1 - 8
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-8, January 2025.
Despite the general population seeking out exercise professionals and the strong interest of other healthcare providers in referring patients to exercise professionals, what characterizes an “exercise professional” is poorly understood. The purpose of this study was to summarize the required qualifications and certifications described in job advertisements hiring an “Exercise Professional” in Canada. A common career finding website (Indeed) and other relevant organizations were searched for job advertisements. The specific search terms were “Kinesiology”, “Kinesiologist”, “Exercise Professional”, and “Exercise Physiologist”. Job advertisements that were hiring an exercise professional and described some exercise related duties were included for content analysis. n = 177/1364 unique job advertisements met inclusion criteria. Job titles were grouped into six main categories: Kinesiologist (n = 88/177), Personal Trainer (n = 49/177), Fitness Coach/Instructor (n = 38/177), Strength and Conditioning Specialist (n = 5/177), Exercise Physiologist (n = 4/177), and other (n = 31/177). Most positions required (n = 101) or preferred (n = 36) a Kinesiology degree, while n = 48/92 (88 Kinesiology and 4 Exercise Physiologist positions) indicated a need/interest in applicants having a membership with a provincial Kinesiology association/affiliation, n = 8/92 a Clinical Exercise Physiologist certification, and n = 6/92 a general “Kinesiology certification”. This emphasizes the need for unique requirements of exercise professional positions and guidelines for the (di)similar scope of practice across exercise professional training.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-20T07:00:00Z
DOI: 10.1139/apnm-2024-0184
Issue No: Vol. 50 (2025)
-
- Cardiometabolic health, socioeconomic status, and 2019 Canada’s Food
Guide Food Choices Assessment Score: findings from the Canadian Health
Measures Survey-
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Authors: Samer Hamamji, Daniel Zaltz, Mary L'Abbé
Pages: 1 - 12
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-12, January 2025.
Suboptimal diets are linked to higher cardiometabolic risks and influenced by socioeconomic status. In 2019, Health Canada released an updated Canda’s Food Guide (CFG) supported with Canada’s Dietary Guidelines (CDG) to help Canadians achieve healthy diet. This study aims to investigate the association between food choices assessed by a Food Choices Assessment Score (FCAS) according to 2019 CFG/CDG, and socioeconomic status and cardiometabolic risk factors among Canadian adults. Dietary choices of Canadian adults (n = 6352) from the food frequency questionnaire data of the Canadian Health Measures Survey cycles 5 and 6 (2016–2019) were used. Canadian adults with post-secondary education and high household income were associated with higher FCAS (+6.2; 95%CI 4.2, 8.2) and (+2.1; 95%CI 0.3, 3.8), respectively. Compared with the lowest quintile of the FCAS, Canadians in the highest quintile of the FCAS had lower odds of elevated BMI (0.63; 95%CI 0.44, 0.91), elevated WC (0.51; 95%CI 0.27, 0.97) in females but not in males, elevated systolic (0.69; 95%CI 0.48, 0.97), diastolic blood pressure (0.69; 95%CI 0.50, 0.96), TC (0.59; 95%CI 0.39, 0.89), non-HDL-C (0.51; 95%CI 0.31, 0.86), LDL-C (0.60; 95%CI 0.38, 0.95), Apo-B (0.62; 95%CI 0.39, 0.96), HbA1C (0.53; 95%CI 0.31, 0.93), FBG (0.62; 95%CI 0.4, 0.94), HOMA-IR (0.60; 95%CI 0.39, 0.91), and hs-CRP (0.59; 95%CI 0.36, 0.96). HDL-C and TG were not associated with FCAS. These analyses suggest strong associations between dietary choices, aligned with 2019 CFG/CDG as measured by the FCAS, and socioeconomic status and better cardiometabolic health among Canadian adults.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-17T07:00:00Z
DOI: 10.1139/apnm-2024-0357
Issue No: Vol. 50 (2025)
-
- Grocery and chain restaurant foods and beverages allowed for sale in
Ontario schools: an evaluation against Ontario’s School Food and
Beverage Policy-
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Authors: Emily R. Ziraldo, Hayun Jeong, Annette Blais, Mavra Ahmed, Momiji Uji, Yahan Yang, Vasanti S. Malik, Daniel W. Sellen, Mary R. L'Abbé
Pages: 1 - 11
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-11, January 2025.
The Ontario School Food and Beverage policy, also known as Policy/Program Memorandum 150 (PPM150), was established in 2010 to promote healthier food choices among children by setting nutrition standards for foods and beverages sold in publicly funded elementary and secondary schools. Schools face barriers to complying with the PPM150 nutrition standards including a lack of human resources, technical tools, and financial means. Therefore, to support school food providers in sourcing foods that meet the nutrition standards in PPM150, this cross-sectional study assessed the alignment of foods and beverages from grocery stores and menu offerings from chain restaurants with the PPM150 nutrition standards. We compared nutrition data for foods and beverages available at grocery stores and menu items available at chain restaurants from the Food Label Information and Price (FLIP) 2020 (n = 35 103) and Menu-FLIP 2020 (n = 18 649) databases, respectively, against the PPM150 nutrition standards. Half of foods from grocery stores (51%) and most from chain restaurants (85%) did not meet PPM150 standards and are not permitted for sale. For beverages, 91% from grocery stores and 98% from chain restaurants are not permitted at elementary schools. At secondary schools, 56% of beverages from grocery stores and 94% from restaurants are not permitted. Findings suggest few foods, beverages and chain restaurant menu items meet the PPM150 nutrition standards, potentially posing an additional barrier for Ontario schools to procure and offer healthy foods to students.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-17T07:00:00Z
DOI: 10.1139/apnm-2024-0495
Issue No: Vol. 50 (2025)
-
- Plasma and fecal bioactive mediators in relation to the prevention of
atherogenesis in LDL-r-KO mice: insights from an African staple food-
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Authors: Ramandeep Kaur, Rosemary Kobue-Lekalake, Kabo Masisi, Harold M. Aukema, Mohammed H. Moghadasian
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
Our previous study revealed a significant anti-atherosclerotic effect of Kgengwe seed powder (KSP) in low-density lipoprotein receptor knockout (LDL-r-KO) mice. The importance of various lipid and protein metabolites, including certain amino acids and fatty acids on atherogenesis has been well established. Thus, we used plasma and fecal samples from our previous study to further study the association of such metabolites with atherosclerotic lesion development. Male LDL-r-KO mice were provided with an atherogenic diet supplemented with (treated, n = 10) or without (controls, n = 10) 10% (w/w) KSP for 20 weeks. The treated group showed significantly (P
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-11T07:00:00Z
DOI: 10.1139/apnm-2024-0328
Issue No: Vol. 50 (2025)
-
- A descriptive study of the timing and type of physical activity that is
being resumed in early postpartum-
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Authors: Kelly-Anne Benoît, Audrey St-Laurent, Véronique Babineau, Stephanie-May Ruchat
Pages: 1 - 10
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-10, January 2025.
Postpartum physical activity (PA) is an important component of the woman’s health. Recently, more attention has been paid to develop guidance for safe return to PA after delivery, including return to running. Little is known about when women start PA after delivery and what type of PA they are practicing. The objectives were to (1) describe early postpartum PA (≤6 weeks), (2) compare women’s characteristics between those who started any kind of PA and those who did not, and those who started and did not start running, and (3) explore predictors of PA and running. Ninety-one women, who were part of a longitudinal cohort study, were included. At 6 weeks postpartum, PA was assessed using a questionnaire. Predictors of PA and running were age, education, parity, pre-pregnancy body mass index, prenatal PA, gestational weight gain, prematurity, delivery mode, season, and breastfeeding. The Wilcoxon rank-sum test, Fischer’s exact test, and logistic regression analyses were used. Eighty-five women (93%) resumed PA by 6 weeks postpartum. Walking was practiced by 92% of women for 127.0 ± 81.3 min/week. Running was the second most popular activity, practiced by 11% of women for 57.5 ± 31.8 min/week. Walking and running were started around 2.0 and 3.6 weeks after delivery, respectively. Women who delivered in spring or summer were more likely to resume PA by 6 weeks postpartum, and those who ran while pregnant had five-fold higher odds of starting to run by 6 weeks postpartum (OR:5.03, 95%CI 1.27; 19.92). These findings improve our understanding of PA practice, including running, in early postpartum.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-11T07:00:00Z
DOI: 10.1139/apnm-2024-0283
Issue No: Vol. 50 (2025)
-
- Physiological monitoring for occupational heat stress management: recent
advancements and remaining challenges-
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Authors: Sean R. Notley, Robert D. Meade, David P. Looney, Christopher L. Chapman, Adam W. Potter, Alison Fogarty, Tabassum Howlader, Luana C. Main, Karl E. Friedl, Glen P. Kenny
Pages: 1 - 14
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-14, January 2025.
Occupational heat stress poses a major threat to worker health and safety that is projected to worsen with global warming. To manage these adverse effects, most industries rely on administrative controls (stay times and work-to-rest allocations) that are designed to limit the rise in body core temperature in the “average” individual. However, due to the extensive inter- and intra-individual variation in thermoregulatory function, these administrative controls will result in some individuals having their work rate and productivity unnecessarily restricted (false positives), while others may be subject to rises in heat strain that compromise health (false negatives). Physiological monitoring has long been touted as a more effective approach for individualized protection from excessive heat stress. This has led to extensive interest in the use of wearable technology for heat stress management from both the scientific community and manufacturers of wearable devices, which has accelerated in the past decade. In this review, we evaluate the merits of the recent and emerging approaches to manage occupational heat strain with wearable physiological monitors. Against this background, we then describe the issues that we perceive to be unresolved regarding the use of wearable heat strain monitors and the research efforts needed to address those issues. Particular emphasis is directed to the efficacy of existing physiological indicators of heat strain, how to define upper limits for those indicators and the efforts required to rigorously validate emerging wearable heat strain monitoring devices.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-10T07:00:00Z
DOI: 10.1139/apnm-2024-0395
Issue No: Vol. 50 (2025)
-
- Different doses of theacrine do not improve 4 km cycling time trial
performance-
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Authors: Victor Vieira-Cavalcante, Julio Cezar Schamne, Felippi Gonçalves, Romulo Bertuzzi, Anna Paola Trindade Rocha Pierucci, Daniel Boari, Adriano Eduardo Lima-Silva, Renata Gonçalves Silva
Pages: 1 - 11
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-11, January 2025.
The aim of the present study was to test the effects of different doses of anhydrous theacrine (3 and 6 mg·kg−1 of body mass) on 4 km cycling time trial performance. Nineteen (11 men and 8 women) cyclists (30.8 ± 10.0 years, 71.7 ± 11.8 kg, 170.1 ± 9.0 cm, and 17.0 ± 6.2% of body fat) completed three 4 km cycling time trials after ingesting either placebo, or 3 or 6 mg·kg−1 of body mass of theacrine. No significant differences (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-06T08:00:00Z
DOI: 10.1139/apnm-2024-0442
Issue No: Vol. 50 (2025)
-
- Effect of brief ambient cooling on serum stress biomarkers in older adults
during a daylong heat exposure: a laboratory-based heat wave simulation-
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Authors: Ben J. Lee, Robert D. Meade, Sarah L. Davey, Charles D. Thake, James J. McCormick, Kelli E. King, Glen P. Kenny
Pages: 1 - 8
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-8, January 2025.
Visiting an air-conditioned location during heat exposure reduces physiological strain; however, the effects on gastrointestinal barrier dysfunction and renal ischemia remain unexplored. We compared serum protein responses during a 9 h heat exposure (40.3 °C, 9.3% relative humidity) in 17 older adults without cooling (control) and 19 older adults with a cooling break (∼23 °C) during hours 5 and 6 (cooling). IFABP and sCD14 increased similarly across groups. NGAL was 3.2 pg/mL [1.9, 6.1] lower in the cooling group during heat exposure. A 2 h cooling centre exposure did not ameliorate gastrointestinal barrier dysfunction, but did a reduce a surrogate marker of renal ischemia. ClinicalTrials.gov identifier: NCT04353076.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-03-04T08:00:00Z
DOI: 10.1139/apnm-2024-0476
Issue No: Vol. 50 (2025)
-
- Effects of pedestal-mounted electric fans on self-reported symptoms and
mood-state in older adults exposed to indoor overheating during a
simulated heatwave: an exploratory analysis-
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Authors: Fergus K. O'Connor, Gregory W. McGarr, Roberto C. Harris-Mostert, Pierre Boulay, Ronald J. Sigal, Robert D. Meade, Glen P. Kenny
Pages: 1 - 12
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-12, January 2025.
Recent evidence from modelling and laboratory-based studies showed that electric fans are ineffective at meaningfully lowering core temperature in older adults at air temperatures of 36 °C. However, their influence on self-reported environmental symptoms and mood-state during daylong use in hot indoor environments remains unclear. Eighteen older adults (8 females, median (interquartile range); 72 (67–76 years)) completed three randomized 8 h heat exposures (36 °C, 45% relative humidity) with a fan generating air speeds of 0 (no fan, control), 2, or 4 m/s at the front of the body positioned 1 m away. Participants were seated throughout, except for 4 × 10 min periods of simulated activities of daily living (stepping (∼2.25 metabolic equivalents (METs)). Core temperature, mean skin temperature, and heart rate areas under the curve (AUCs, hours 0–8) were calculated to assess cumulative physiological strain. Total Symptom Scores (68-item Environmental Symptoms Questionnaire) as well as Total Mood Disturbance and Energy Index (40-item Profile of Mood States questionnaire) were evaluated at end-heating (adjusted for pre-exposure). Core temperature, mean skin temperatures, and heart rate AUCs were not different between conditions (all p ≥ 0.087). Total Symptom Scores were 0.89-fold [0.81, 0.97] lower with fan use (combined across speeds) compared to no fan (p = 0.009). Energy Index scores were 2.4 points [0.8, 4.0] higher with fan use compared to no fan (p = 0.004). However, mood disturbance was not significantly different between conditions (p = 0.345). Our exploratory analysis show that fans can reduce self-reported symptoms and increase perceived energy levels in older adults in overheated indoor environments, despite no meaningful attenuation of physiological strain. ClinicalTrials.gov Identifier: NCT05695079.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-28T08:00:00Z
DOI: 10.1139/apnm-2024-0461
Issue No: Vol. 50 (2025)
-
- Effects of eccentric versus stretching exercise training on cognitive
function of older women-
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Authors: Min-Jyue Huang, Favil Singh, Dennis R. Taaffe, Trevor C. Chen, Kazunori Nosaka
Pages: 1 - 12
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-12, January 2025.
Exercises focusing on eccentric contractions may stimulate the brain better, improving cognitive function. We tested the hypothesis that executive function and attention would improve more after eccentric resistance exercise (ECC) than stretching exercise (STRETCH) training. Healthy older women (65–75 years) underwent either ECC (n = 14) or STRETCH (n = 14) intervention for 8 weeks. ECC consisted of seven exercises emphasizing eccentric contractions while STRETCH performed 12 stretching exercises, with supervised sessions undertaken twice weekly accompanied by a home-based program. Executive function and attention were assessed using the Stroop test of color naming (STCN) and conflicting color words, symbol digit modalities test, digit span test (DST), and trail making tests (TMT-A and TMT-B), and six physical function tests were undertaken before and after the 8-week training period. Fasting blood samples were obtained before and after the training. A significant (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-26T08:00:00Z
DOI: 10.1139/apnm-2024-0390
Issue No: Vol. 50 (2025)
-
- Dose–response relationship between leisure-time physical activity and
metabolic syndrome in short sleep US adults: evidence from a nationwide
investigation-
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Authors: Yanwei You, Hao Ding, Meihua Tang, Weizhao Wang, Ning Yan, Leizi Min, Yuquan Chen, Xindong Ma
Pages: 1 - 10
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-10, January 2025.
Metabolic syndrome (MetS) and short sleep are prevalent health concerns in the United States, yet the relationship between leisure-time physical activity (LTPA) and MetS among individuals with short sleep duration remains unclear. This cross-sectional study analyzed data from 8999 US adults aged 20 years and older in the National Health and Nutrition Examination Survey. Short sleep duration was defined as less than 7 h per night, and MetS was diagnosed based on criteria from the American Endocrine Society and the American Society of Clinical Endocrinology. Weighted regression analyses revealed a significant inverse association between LTPA and MetS, with higher LTPA levels linked to lower MetS (OR (95% CI): 0.990 (0.984, 0.997), p = 0.003). Participants who achieved the World Health Organization’s recommended LTPA levels had a substantially lower MetS compared to those with no LTPA (OR (95% CI): 0.624 (0.527, 0.738), p = 0.001). Stratified analyses showed that this protective effect varied across demographic subgroups, and a threshold effect was observed at 2000 MET-min/week, beyond which further LTPA did not significantly enhance protection against MetS. These findings highlight the importance of regular LTPA that is negatively associated with MetS among individuals with inadequate sleep, emphasizing the need for targeted health promotion efforts in this population.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-24T08:00:00Z
DOI: 10.1139/apnm-2024-0347
Issue No: Vol. 50 (2025)
-
- Are post-exercise plasma glucose elevations involved in exercise-induced
appetite suppression'-
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Authors: Derek P.D. Bornath, Seth F. McCarthy, Jessica A.L. Tucker, Tamara R. Cohen, Philip J. Medeiros, Tom J. Hazell
Pages: 1 - 16
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-16, January 2025.
Changes in glucose and insulin are potentially involved in the appetite-regulatory effects of exercise considering their role post-prandially. The purpose of this study was to examine whether glucose and insulin play a role in post-exercise appetite regulation. Twelve participants (M = 8; 26 ± 5 years) completed 3 experimental sessions in a systematically rotated randomized crossover design: (1) no-exercise control (CTRL); (2) moderate-intensity continuous training (MICT; 30 min, 70% maximal oxygen consumption (V̇O2max)); and (3) sprint interval training (SIT; 4 × 30 s “all-out” sprints, interspersed with 4 min rest). Plasma glucose, insulin, acylated ghrelin, active peptide tyrosine tyrosine (PYY), active glucagon-like peptide-1 (GLP-1), and overall appetite perceptions were measured pre-exercise, 0, 30, 60, and 120 min post-exercise. Energy intake was recorded the day before, of, and after experimental sessions. Glucose was elevated 0 min post-exercise (p 0.52) compared to CTRL with no differences between exercise bouts. Acylated ghrelin was suppressed by MICT (60, 120 min) and SIT (0, 30, 60, 120 min; p 0.56) compared to CTRL, while also suppressed in SIT compared to MICT at 30, 60, 120 min (p 0.74). GLP-1 was elevated following MICT (0, 30, and 60 min) and SIT (60 min; p 0.53) compared to CTRL and following MICT compared to SIT (0 min; p = 0.005, d = 1.03). Overall appetite was suppressed by SIT post-exercise (p 0.61) compared to CTRL and MICT, and by MICT 0 min post-exercise compared to CTRL (p = 0.036, d = 0.71). There were no exercise effects on insulin, PYY, or free-living energy intake (p > 0.217, ηp 2
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-21T08:00:00Z
DOI: 10.1139/apnm-2024-0331
Issue No: Vol. 50 (2025)
-
- Carnosine-enriched functional food enhances micro- and macrovascular
endothelium-independent vasodilation in competitive athletes—a
randomized study-
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Authors: Leon Perić, Ines Drenjančević, Ivana Jukić, Alina Boris, Petar Šušnjara, Nikolina Kolobarić, Zrinka Mihaljević, Zlata Kralik, Gordana Kralik, Manuela Košević, Olivera Galović, Ana Stupin
Pages: 1 - 11
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-11, January 2025.
This randomized interventional study aimed to investigate the effect of carnosine-enriched chicken meat consumption on systemic endothelium-dependent and -independent micro- and macrovascular reactivity in thirty-five healthy competitive male athletes. Both forearm skin micro- and macrovascular endothelium-independent vasodilation were increased, and diastolic and mean arterial blood pressure (BP) were decreased in Carnosine group (n = 19) following the 3-week dietary protocol. Microvascular endothelium-dependent response (post-occlusion reactive hyperemia) was increased in the Carnosine group and significantly associated with decreased mean arterial BP level. Following dietary protocol, Controls (n = 16) had substantially higher urate (but still normal) levels than the Carnosine group. Carnosine supplementation in the form of functional food enhances endothelium-dependent and vascular smooth muscle-dependent vasodilation in peripheral micro- and microcirculation. Carnosine's effect on vascular endothelium could be attributed to its BP-lowering effect. Results suggest that carnosine has the potential to resist hyperuricemia in healthy individuals. ClinicalTrials.gov (NCT05723939)
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-21T08:00:00Z
DOI: 10.1139/apnm-2024-0458
Issue No: Vol. 50 (2025)
-
- Brain-derived neurotrophic factor response to daylong exposure to extreme
heat in young and older adults: a secondary analysis-
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Authors: Nathalie V. Kirby, Robert D. Meade, James J. McCormick, Kelli E. King, Glen P. Kenny
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
Brain-derived neurotrophic factor (BDNF) is a growth factor associated with a range of neurological, cardioprotective, and metabolic health benefits. While passive heat stress has been observed to increase circulating BDNF, the BDNF response to a given stressor may be attenuated with increasing age. To investigate the influence of age on the BDNF response to heat stress, we compared BDNF responses to daylong (9 h) exposure to hot ambient conditions (40 °C, 9% relative humidity) between 19 young (range: 19–31 years; 9 women) and 37 older adults (61–78 years; 12 women). We also explored whether cumulative thermal strain (area under the curve of rectal and mean body temperatures) impacted comparisons. Serum BDNF concentrations were assessed at pre- and end-exposure using enzyme-linked immunosorbent assays. Circulating BDNF concentrations increased from baseline in both groups (P
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-19T08:00:00Z
DOI: 10.1139/apnm-2024-0289
Issue No: Vol. 50 (2025)
-
- Reduced H-reflex gain in soleus during isometric plantar flexor and
dorsiflexor muscle contractions in old adults-
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Authors: Mélanie Henry, Anastasia Theodosiadou, Stéphane Baudry
Pages: 1 - 11
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-11, January 2025.
The modulation of the Hoffmann (H) reflex amplitude during agonist and antagonist muscle contractions provides relevant information on the neural control of leg muscles but remains largely unknown in older adults. This study investigated the H-reflex gain in the soleus muscle at rest and during plantar flexor (PF) and dorsiflexor (DF) muscle contractions performed at 10%, 20%, and 30% of the maximal electromyographic (EMG) activity (EMGMVC) in 12 young (23–35 years) and 12 old adults (61–76 years). The reflex gain was measured as the slope of the relation between H-reflex amplitude and background EMG activity. The stimulation intensity was set to evoke at rest an H reflex in the ascending phase of its recruitment curve preceded by an M wave (5%–10% of its maximal amplitude; Mmax). During PF contractions, the H-reflex amplitude increased with the increase in contraction intensity in both groups with a greater reflex gain (p = 0.024) in young (1.2 (0.5)% Mmax/% EMGMVC) than older adults (0.7 (0.4)% Mmax/% EMGMVC). During DF contractions, the H-reflex amplitude decreased in both groups, with a more negative reflex gain (p = 0.009) in young (−6.8 (2.8)% Mmax/% EMGMVC) than older adults (−2.7 (4.0)% Mmax/% EMGMVC). The decrease in H-reflex amplitude was linearly associated with the increase in tibialis anterior EMG in both groups. The present study showed a smaller reflex gain in older adults in soleus during submaximal PF and DF contractions, suggesting a decreased ability to adjust the excitatory afferent inputs during PF contractions, and to modulate reciprocal inhibition during DF contractions.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-19T08:00:00Z
DOI: 10.1139/apnm-2024-0369
Issue No: Vol. 50 (2025)
-
- The longitudinal evaluation of the Canadian 24-Hour Movement Guidelines
for Adults: lessons learned and considerations for future research-
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Authors: Kaitlyn D. Kauffeldt, Amy E. Latimer-Cheung, Guy Faulkner, Melissa C. Brouwers, Rebecca Jones, Kirstin N. Lane, Zachary J. Weston, Tamara L. Morgan, Olivia Varkul, Jennifer R. Tomasone
Pages: 1 - 16
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-16, January 2025.
National movement behaviour guidelines, in isolation, are unlikely to influence practice or policy unless accompanied by robust knowledge mobilization (KMb) strategies. However, without pairing KMb strategies with systematic evaluation, the impact of large-scale dissemination is unknown. The objectives of this study were to (1) systematically assess the dissemination of the Canadian 24-Hour Movement Guidelines for Adults Aged 18–64 Years and Adults Aged 65 Years or Older (24HMG) using the Reach Effectiveness Adoption Implementation and Maintenance (RE-AIM) framework and (2) provide recommendations to support the KMb and future impact of national movement behaviour guidelines. Intermediary organizations involved in the development and dissemination of the 24HMG were invited to participate in this study. A combination of methods—including cross-sectional surveys, media monitoring, and website content analysis—were performed at multiple timepoints over a 12-month period to assess the dissemination of the 24HMG. Findings suggest that the multi-pronged dissemination approach used for the 24HMG had a large reach to guideline target audiences (approximately 11.9 million) but resulted in low awareness and knowledge of the 24HMG among adults living in Canada (31.9% and 1.6%, respectively). Dissemination activities performed by intermediary organizations peaked in the first 4-months post-guideline release (76% of responding organizations), trending downwards over time (53% of responding organizations at 12 months). The complexity of disseminating national movement behaviour guidelines presents many challenges to systemic adoption. However, the impact of future national movement behaviour guidelines may be improved by augmenting current dissemination approaches to include coordinated, scalable, and capacity-building strategies.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-19T08:00:00Z
DOI: 10.1139/apnm-2024-0348
Issue No: Vol. 50 (2025)
-
- Relationship of irisin and apelin levels with sarcopenia and body
composition in community-dwelling older adults: a paired case–control
study-
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Authors: Liangchuan Zhang, Yating Peng, Yaling Qie, Jia Guo, Yuan Kong, Xue Zhang, Zetian Li, Hong Jia
Pages: 1 - 11
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-11, January 2025.
Irisin and apelin levels continue to decrease with age, and although many previous studies have explored their association with sarcopenia and body composition, there is still a paucity of evidence relating to them in community-dwelling elderly populations. The aim of this study was to provide new evidence for the association of irisin and apelin with sarcopenia in older adults. This case–control study included 80 individuals with sarcopenia and 80 individuals without sarcopenia. The definition of sarcopenia was based on the Asian Working Group for Sarcopenia 2019 criteria. Plasma levels of irisin and apelin were measured using an enzyme-linked immunosorbent assay. Conditional logistic regression analysis was performed to estimate odds ratios (ORs) and 95% CIs. The sarcopenia group exhibited significantly lower levels of irisin (73.75 ± 30.97 ng/mL vs. 131.15 ± 88.38 ng/mL, p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-13T08:00:00Z
DOI: 10.1139/apnm-2024-0473
Issue No: Vol. 50 (2025)
-
- Acute high-intensity exercise enhances T cell proliferation compared to
moderate-intensity exercise-
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Authors: Jacob A. Siedlik, Jake A. Deckert, Amanda J. Dunbar, Anuja Bhatta, Nicole M. Gigliotti, Marcia A. Chan, Stephen H. Benedict, Matthew Bubak, John P. Vardiman, Philip M. Gallagher
Pages: 1 - 12
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-12, January 2025.
Conventional belief is that high-intensity (HI) exercise inhibits immune function; however, recent work challenges this position. The purpose of this was to quantify changes in T cell proliferative capacity following either a HI or moderate-intensity (MI) exercise. Sixteen males were randomly selected to a HI or MI exercise group. Blood was obtained baseline and immediately, 1, 4, and 6 h post-exercise for analyses of CD3+ T cell proliferation (co-stimulation via phytohaemagglutinin or CD3 + CD28). The proliferative response increased in T cells in the HI group and remained significantly elevated up to 6 h post-exercise in both co-stimulation conditions. In contrast, the MI group saw no change proliferative ability following exercise. Analyses of serum stress hormones, and immunomodulatory cytokines failed to reveal any correlated variations that could clarify the T cell findings. We suggest the increase in proliferative capacity following HI exercise is indicative of an exercise-induced activation that provides for enhanced functional responses to stimuli. Moreover, this study shows that HI exercise increases T cell processes, effectively priming them for activation in response to stimuli. This study is registered with ClinicalTrials.gov (NCT06638684).
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-13T08:00:00Z
DOI: 10.1139/apnm-2024-0420
Issue No: Vol. 50 (2025)
-
- How are exercise professionals described within academic literature' A
narrative review-
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Authors: Madeline E. Shivgulam, Abigail R. Tiemstra, Brooke J. Hebert, Jonathon R. Fowles, Myles W. O'Brien, Taniya S. Nagpal
Pages: 1 - 11
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-11, January 2025.
There is growing interest to include exercise into healthcare for the prevention, treatment, and management of chronic disease. However, what defines an “exercise professional” to fulfil these roles and responsibilities is not clear across Canada. While exercise science often integrates exercise professionals within academic studies to assist exercise-based research, exploring how exercise professionals are involved in these contexts may contribute to developing a clearer understanding of how these professionals may be characterized. The purpose of this narrative review was to summarize how exercise professionals are described in research and identify the components that inform their unique roles. A keyword search of “exercise professional” was performed in multiple databases, including Medline, SportDiscus, and Web of Science to identify peer-reviewed studies that included “exercise professionals”. Fifteen studies were included, and two independent reviewers performed a reflexive thematic analysis to derive three themes that represent how exercise professionals were described: (1) job title; (2) roles/duties (e.g., fitness testing, motivational interviewing), and (3) education/qualifications/credentials. Common occupations involved in research included exercise physiologists, kinesiologists, and personal trainers. Exercise professionals were responsible for interacting with clinical and non-clinical populations in a variety of contexts. Similarly, qualifications varied, with some studies specifying further training to work with special populations (e.g., patients who have cancer). By identifying these discrepancies, this study highlights the need to develop consistent definitions and roles to promote recognition and integration of exercise professionals in both clinical and community settings.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-11T08:00:00Z
DOI: 10.1139/apnm-2024-0416
Issue No: Vol. 50 (2025)
-
- The type of sport, but not sex, impacts body composition and metabolic
response to a complete weight loss–weight regain episode in weight
cycling athletes: results from the WAVE study-
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Authors: Sarah Bagot, Ines Ramos, Jennifer Miles-Chan, Abdul Dulloo, Anthony C Hackney, Yves Boirie, Martine Duclos, David Thivel, Laurie Isacco
Pages: 1 - 13
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-13, January 2025.
Athletes may engage in weight cycling—successive episodes of weight loss and weight (re)gain—for performance reasons, but risk metabolic adaptations and regaining more fat that was lost (fat overshoot). This study aimed to assess the influence of a complete weight cycling episode on body composition, thermoregulation, and metabolism in athletes, considering sex and the type of sport practiced. Forty-eight athletes (28 males, 20 females) engaged in combat (n = 23), strength (n = 12), or endurance (n = 13) sports were examined under three experimental conditions (weight maintenance, weight loss, weight (re)gain) during a weight cycling episode using their habitual strategies. Body composition (dual-energy X-ray absorptiometry), core body temperature (telemetric temperature sensor), energy expenditure and substrate oxidation at rest and during moderate exercise (indirect calorimetry), and energy intake (48 h food record) were assessed. Overall, athletes lost 4.4 ± 2.3% body weight, 12.2 ± 10.6% fat mass, and 2.6 ± 2.3% fat-free mass (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-07T08:00:00Z
DOI: 10.1139/apnm-2024-0376
Issue No: Vol. 50 (2025)
-
- Acute physiological and perceptual responses to three blood flow
restricted interval exercise protocols: a randomised controlled trial-
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Authors: Man Tong Chua, Alexiaa Sim, Stephen Francis Burns
Pages: 1 - 13
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-13, January 2025.
Blood flow restriction (BFR) may enhance the acute training stimulus of exercise. This study examined acute physiological and perceptual responses to three lower-limb BFR + interval exercise protocols. Twenty-four club/university male athletes (age 25 ± 3.5, V̇O2max 47.0 ± 5.5 mL∙kg∙min– 1) completed four experimental conditions in a randomised crossover manner: (i) high-intensity control (HI) – 100% maximal aerobic power (Wmax); (ii) high-intensity recovery occlusion (HIRO) – 100% Wmax, 80% limb occlusion pressure (LOP) during rest; (iii) moderate-intensity low occlusion (MILO) – 70% Wmax, 50% LOP during exercise; and (iv) moderate-intensity high occlusion (MIHO) – 70% Wmax, 80% LOP during exercise. All interval exercise protocols were three sets of five × 30 s cycling, 30 s unloaded active recovery with 3 min seated rest between sets. During recovery, HIRO condition indicated lower tissue saturation index, higher deoxyhaemoglobin, oxyhaemoglobin and total haemoglobin levels than other conditions (all p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-07T08:00:00Z
DOI: 10.1139/apnm-2024-0423
Issue No: Vol. 50 (2025)
-
- Mobilizing knowledge generated from Canadian Institutes of Health
Research-Institute of Nutrition, Metabolism and Diabetes (CIHR-INMD) food
and health strategic research funding-
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Authors: M.J. Makarchuk, N.D. Rosenblum
Pages: 1 - 2
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-2, January 2025.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-06T08:00:00Z
DOI: 10.1139/apnm-2025-0010
Issue No: Vol. 50 (2025)
-
- The role of the muscle metaboreflex on cardiovascular responses to
submaximal resistance exercise with different pressures and modes of blood
flow restriction-
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Authors: Yujiro Yamada, William B. Hammert, Ryo Kataoka, Jun Seob Song, Anna Kang, Witalo Kassiano, Jeremy P. Loenneke
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
This study investigated the role of the muscle metaboreflex on cardiovascular responses to submaximal resistance exercise using different pressures and modes of blood flow restriction. Fifty-three adults completed six visits. The first visit involved a performance test (two sets of unilateral knee extension exercise until task failure at 30% 1RM) with continuous blood flow restriction (80% arterial occlusion pressure). In subsequent visits, participants performed (1) a nonexercise control (Control), 70% of the repetitions completed in the performance test with the cuff inflated to (2) continuously 80% arterial occlusion (LL + 80%), (3) continuously 40% arterial occlusion (LL + 40%), (4) intermittently 80% arterial occlusion during exercise (LL + 80%Int), and (5) 0 mmHg (LL), in a randomized order. Three minutes of post-exercise circulatory occlusion was employed to assess the muscle metaboreflex activation. Blood pressure and heart rate were measured at various time points. The pre-post increase in systolic blood pressure was not greater with LL + 80%Int (p = 0.987) but was greater with LL + 80% and LL + 40% (LL + 80%> LL + 40%, p = 0.005) than LL by 7 [95%CI: 4, 9] and 4 [95%CI; 2, 6] mmHg, respectively. Heart rate increased only with LL + 80% over LL and Control (p 0.468) and heart rate (p > 0.543) did not differ among exercise conditions from immediate post-exercise to the end of the circulatory occlusion. Systolic/diastolic blood pressure returned to a similar level as Control (∼120, ∼70 mmHg, respectively) immediately after the cuff deflation. Continuous blood flow restriction, especially with higher pressure, accentuates muscle metaboreflex activation, resulting in amplified cardiovascular responses to the exercise.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-02-03T08:00:00Z
DOI: 10.1139/apnm-2024-0383
Issue No: Vol. 50 (2025)
-
- The cumulative effects of consecutive days of prolonged, physical work or
activity on heat strain and physical performance: a systematic review-
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Authors: Daniel C. Moore, Sean R. Notley, Brad Aisbett, Luana C. Main
Pages: 1 - 14
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-14, January 2025.
With climate warming, there is an urgent need to understand the health effects of occupational heat exposure. This systematic review examined the cumulative effects of consecutive days of prolonged physical work or activity on heat strain and physical performance. Electronic databases MEDLINE, SPORTDiscus, PsychInfo, and Academic Search Complete were searched until July 2024 with terms related to work, consecutive days, and heat. Studies were included if they involved ≥4 h of physical work/activity on ≥2 consecutive days, and included a measure of heat strain (e.g., core temperature) or physical performance (e.g., repetitions). After removing duplicates, 6030 studies were screened (title and abstract), 133 progressed to full-text screening, and 33 met the inclusion criteria with risk of bias assessed. However, only five studies used standardized environmental and work conditions across days. Synthesis of the cumulative effects (without meta-analysis) was therefore restricted to these studies. None observed a cumulative impact on heat strain, as indexed by a higher core temperature or heart rate compared to day 1. None reported a reduction in physical task performance across days. These findings indicate that the cumulative effects of occupational heat exposure on heat strain and physical task performance were minimal, although evidence supporting this conclusion is sparse. PROSPERO registration: CRD42023452936.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-31T08:00:00Z
DOI: 10.1139/apnm-2024-0391
Issue No: Vol. 50 (2025)
-
- Nutrient intakes of Canadian children and adolescents at school by meal
occasion and location of food preparation-
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Authors: Emily R. Ziraldo, Mavra Ahmed, Christine Mulligan, Daniel W. Sellen, Mary R. L'Abbé
Pages: 1 - 12
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-12, January 2025.
Canadian children consume a significant proportion of daily foods at school, do not benefit from any federal school food program, and have historically inadequate diets. Assessment of dietary intakes at school can inform policy discussions for the design, funding, and delivery of school-based nutrition interventions. The objectives were to examine the most recent nationally representative dietary intake data of Canadian children at school by (i) location of food preparation, (ii) meal occasion, and (iii) as a proportion of total daily intakes. Intake data from the first day 24 h dietary recalls of the 2015 Canadian Community Health Survey-Nutrition were examined for children 4–18 years old (n = 1690). Intakes were reported by location of food preparation and meal occasion and were expressed as means and as a proportion of daily intake. At school, 98.6% of children consumed foods that did not require preparation, while 37.1% consumed foods prepared at home. Lunch and snacks were the meal occasions consumed most often at school, by 85.5% and 66.1% of children. Children consumed 32.6% of their daily energy intake and between 28.4% and 35.6% of daily nutrient intakes at school. School-based nutrition interventions for frequently consumed meal occasions, such as snack or lunch programs, that include foods lower in added sugar and sodium and higher in calcium, fibre, and iron may improve the health of Canadian children.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-29T08:00:00Z
DOI: 10.1139/apnm-2024-0027
Issue No: Vol. 50 (2025)
-
- Effects of daylong exposure to indoor overheating on enterocyte damage and
inflammatory responses in older adults: a randomized crossover trial-
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Authors: Ben J. Lee, Robert D. Meade, Sarah L. Davey, Charles D. Thake, James J. McCormick, Kelli E. King, Glen P. Kenny
Pages: 1 - 7
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-7, January 2025.
We evaluated enterocyte damage (IFABP), immune activation (sCD14), and inflammatory responses (TNF-α, IL-6, CRP) in 16 older adults (66–78 years) during 8 h rest in conditions simulating homes maintained at 22 °C (control), the 26 °C indoor temperature upper limit proposed by health agencies, and homes without air-conditioning during heatwaves (31 °C, 36 °C). Relative to 22 °C, IFABP was elevated ∼181 pg/mL after exposure to 31 °C (P = 0.07), and by ∼378 pg/mL (P
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-27T08:00:00Z
DOI: 10.1139/apnm-2024-0368
Issue No: Vol. 50 (2025)
-
- Stretching, isometrics, and aerobic exercise for decreasing blood pressure
post-exercise: a randomized crossover study-
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Authors: Charlie Keller, Philip D. Chilibeck
Pages: 1 - 6
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-6, January 2025.
We compared stretching, isometrics, and aerobic exercise for effectiveness in decreasing blood pressure post-exercise. Using a randomized crossover design, 5 males and 4 females (21.3 years; normotensive) participated in four 30 min sessions on separate days: static stretching (30 s stretches, major muscle groups), isometric exercise, aerobic cycling (75% VO2peak), and control (rest), with blood pressure and heart rate measured before exercise (or rest) and for 60 min post-exercise (or rest). Aerobic exercise and stretching decreased post-exercise systolic blood pressure (∼10 mmHg each) (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-27T08:00:00Z
DOI: 10.1139/apnm-2024-0439
Issue No: Vol. 50 (2025)
-
- Evaluation of an online cardiometabolic and weight loss program: a mixed
methods study-
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Authors: Dianna A. Dandeneau, Silvia J. Leon, Margherita Cameranesi, Mackenzie R. Alexiuk, Jennifer L. P. Protudjer, Clara J. Bohm, Michelle S. J. DiNella, Carrie K. Solmundson, Melanie Talson, Haizhou Wang, Reid H. Whitlock, Claudio Rigatto, Rebecca C. Mollard
Pages: 1 - 11
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-11, January 2025.
Risk factors contributing to cardiovascular diseases (CVD) can be addressed through behavior modification, including changes in diet and physical activity. In 2021, The Wellness Institute (WI), located at Seven Oaks General Hospital, created a virtual cardiometabolic risk reduction program in response to COVID-19 pandemic public health restrictions, encompassing virtual health coaching and lifestyle education. The objective was to evaluate the acceptability, adherence, efficacy, and engagement of the WI online cardiometabolic and weight loss program. The study followed a mixed methods quasi-experimental design. A total of 93 participants enrolled. Quantitative measures including anthropometrics, blood chemistry, and lifestyle were assessed for changes via paired t tests at baseline and 16 weeks. Qualitatively, short answer questionnaires and three focus groups were completed to understand participants’ experiences and program acceptability. We combined qualitative and quantitative data for analysis. Seventy-three participants (64 females, 87.7%) completed the final study visit (age 58 ± 11 years, weight 98 ± 20.9 kg). Of those, 98% attended all coaching sessions, would recommend the program, and reported the coaching sessions helped them stay motivated. A reduction in weight (5 ± 9 kg, p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-24T08:00:00Z
DOI: 10.1139/apnm-2024-0190
Issue No: Vol. 50 (2025)
-
- Development and evaluation of a food choices assessment score (FCAS)
measuring the healthfulness of dietary choices according to 2019 Canada's
Food Guide/Canada's Dietary Guidelines, using the Canadian Health Measures
Survey food frequency questionnaire-
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Authors: Samer Hamamji, Mavra Ahmed, Daniel Zaltz, Mary R. L'Abbé
Pages: 1 - 12
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-12, January 2025.
The objective of this study was to develop and evaluate a food choices assessment score (FCAS) measuring alignment with 2019 Canada's Food Guide (CFG) and Canada's Dietary Guidelines (CDG) using a non-quantitative food frequency questionnaire (FFQ) data. Cross-sectional data from the Canadian Health Measures Survey (2016–2019), including 6459 participants (≥19 years) and a non-quantitative FFQ (∼100 food items) were used. Content and construct validity and assessing reliability were used to evaluate the FCAS, including a comparison of mean FCAS among Canadian subgroups, calculating the FCAS for high quality diet menus, investigating the consistency of the FCAS with the Dietary Approaches to Stop Hypertension (DASH), as a healthy diet linked with lower cardiometabolic risks, and estimating Cronbach's alpha for reliability. The FCAS consisted of nine components for a total of 80 points. The FCAS captured the key recommendations of the 2019 CFG/CDG. Mean (SE) FCAS of the adult Canadian population was 29.3 (0.4) (/80) and was higher in females 32.2 (0.4) and non-smokers 30.3 (0.3) compared to males 26.7 (0.4) and smokers 23.6 (0.9), respectively (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-17T08:00:00Z
DOI: 10.1139/apnm-2024-0305
Issue No: Vol. 50 (2025)
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- Passive heat therapy for cardiovascular disease: current evidence and
future directions-
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Authors: Saniya Rodrigues, Fergus K. O'Connor, Norman R. Morris, Georgia K. Chaseling, Surendran Sabapathy, Aaron J.E. Bach
Pages: 1 - 14
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-14, January 2025.
Passive heat therapy is gaining popularity as an intervention to promote cardiovascular, physiological, and, to a lesser degree, thermoregulatory adaptations in patients with cardiovascular disease. Despite this, the efficacy of heat therapy to elicit these adaptations remains unknown. We searched five databases for original research, screening 2913 studies and identifying 18 eligible studies. Heat therapies included Waon therapy, balneotherapy, water perfused trousers, Finnish sauna, and foot immersion. Interventions were administered across various time frames (20–90 min) and performed 3–7 times per week, for durations of 2–8 weeks. The studies collectively involved a diverse population (mean age: 67 (10) years) with cardiovascular diseases. Heat therapy was consistently shown to improve ejection fraction, flow-mediated dilation, brain natriuretic peptide levels, New York Heart Association classification, and 6 min walk distance. However, positive effects on resting heart rate and blood pressure were infrequently observed, and thermoregulatory responses scarcely reported. Heat therapy may increase sweat rate during heat exposure and reduce resting core temperature, but adaptive skin blood flow responses were not observed. Passive heat therapy shows promising utility in patients with cardiovascular disease, while secondary benefits such as markers of thermoregulatory adaptation may also be observed, these require further investigation.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-16T08:00:00Z
DOI: 10.1139/apnm-2024-0406
Issue No: Vol. 50 (2025)
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- Characterization of individuals achieving type 2 diabetes remission in
real-world settings: bridging clinical evidence and patient experiences-
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Authors: Alexis Marcotte-Chénard, Barbara Oliveira, Tahmina Rahman, Sean McKelvey, Tom Elliott, Paula Rocha, Dylan Mackay, Jonathan P. Little
Pages: 1 - 13
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-13, January 2025.
The objectives of the study were to (1) describe characteristics and lifestyle factors of individuals who have achieved type 2 diabetes (T2D) remission (sub-diabetes glucose levels without glucose-lowering medications for ≥3 months) through changes to diet and exercise behaviour in real-world settings; (2) investigate continuous glucose monitoring (CGM) profiles of these individuals and explore how dietary pattern may influence glucose regulation metrics. This cross-sectional study recruited individuals living with T2D who achieved remission via changes to diet or exercise behaviours. Various questionnaires were used to assess overall health and participants wore a blinded CGM for 14 days to assess glucose profiles and filled out 3-day food records. A total of 21 adults (57 ± 8 years of age) who were recently diagnosed with T2D (4 ± 3 years) with a A1c of 5.7 ± 0.4% volunteered to participate. Participants achieved remission through various means (e.g., combination of diet and exercxise/physical activity) and self-reported following different diets, including 52% following a low-carbohydrate or very low carbohydrate diet, 14% following a “ketovore/carnivore” diet, 10% using a meal replacement diet, 5% following Weight Watcher’s diet, and 19% no defined dietary pattern. The 24 h average CGM glucose value was 5.0 [4.8–5.6] mmol/L (median [IQR]) with 92 [85–97]% of time spent in range (between 4.0 and 9.9 mmol/L). The 24 h average CGM glucose (r = 0.692; P = 0.001) and A1c (r = 0.470; P = 0.049) were correlated with the daily percentage of energy intake from carbohydrate. Remission of T2D appears achievable through various means, including adoption of different dietary approaches and a more active lifestyle underpinning the importance of a patient-centred care.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-14T08:00:00Z
DOI: 10.1139/apnm-2024-0316
Issue No: Vol. 50 (2025)
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- Muscle cell palmitate-induced insulin resistance, JNK, IKK/NF-κB, and
STAT3 activation are attenuated by carnosic and rosmarinic acid-
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Authors: Danja J. Den Hartogh, Rebecca E.K. MacPherson, Evangelia Tsiani
Pages: 1 - 14
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-14, January 2025.
The worldwide epidemic of obesity has drastically worsened with the increase in more sedentary lifestyles and increased consumption of fatty foods. Increased blood free fatty acids, often observed in obesity, lead to impaired insulin action, and promote the development of insulin resistance and type 2 diabetes mellitus. c-Jun N-terminal kinase (JNK), inhibitor of kappa B (IκB) kinase (IKK)-nuclear factor-kappa B (NF-κB), and signal transducer and activator of transcription 3 (STAT3) are known to be involved in skeletal muscle insulin resistance. We reported previously that carnosic acid (CA) and rosmarinic acid (RA) attenuated the palmitate-induced skeletal muscle insulin resistance, an effect that was associated with increased AMPK activation and reduced mammalian target of rapamycin-p70S6K signaling. In the present study, we examined the effects of CA and RA on JNK, IKK-NF-κB, and STAT3. Exposure of cells to palmitate increased the phosphorylation/activation of JNK, IKKα/β, IκBα, NF-κBp65, and STAT3. Importantly, CA and RA attenuated the deleterious effects of palmitate. Our data indicate that CA and RA have the potential to counteract the palmitate-induced skeletal muscle cell insulin resistance by modulating JNK, IKK-NF-κB, and STAT3 signaling.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-13T08:00:00Z
DOI: 10.1139/apnm-2024-0302
Issue No: Vol. 50 (2025)
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- Passive heating in sport: context-specific benefits, detriments, and
considerations-
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Authors: Campbell Menzies, Neil D. Clarke, Christopher J.A. Pugh, Charles J. Steward, C. Douglas Thake, Tom Cullen
Pages: 1 - 15
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-15, January 2025.
Exercise and passive heating share some acute physiological responses. These include increases in body temperature, sweat rate, blood flow, heart rate, and redistribution of plasma and blood volume. These responses can vary depending on the heating modality or dose (e.g., temperature, duration, body coverage) and are beneficial to athletes in specific scenarios. These scenarios include being applied to increase muscle or force production, induce rapid weight loss, stimulate thermoregulatory or cardiovascular adaptation, or to accelerate recovery. The rationale being to tailor the specific passive heating protocol to target the desired physiological response. However, some acute responses to passive heating may also be detrimental to sporting outcomes, such as exercising in the heat, having unintended residual negative effects on performance or perceptions of fatigue, or even resulting in hospitalisation if implemented inappropriately. Accordingly, the effects of passive heating should be carefully considered prior to implementation by athletes, coaches, and support staff. Therefore, the purpose of this review is to evaluate the physiological responses to different modes and doses of passive heating and explore the various sport contexts where these effects may either benefit or hinder athletes. Understanding these responses can aid the implementation of passive heating in sport and identify potential recommended heating protocols in each given scenario.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-13T08:00:00Z
DOI: 10.1139/apnm-2024-0381
Issue No: Vol. 50 (2025)
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- Note of appreciation
-
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Pages: 1 - 1
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-1, January 2025.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-10T08:00:00Z
DOI: 10.1139/apnm-2024-0496
Issue No: Vol. 50 (2025)
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- Exploring Canadian dietitians’ knowledge, attitude, and practices
providing culturally safe care to Muslims who fast during the month of
Ramadan: a cross-sectional study-
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Authors: Katherine A.W. Hillier, Hassan Vatanparast, Ginny Lane
Pages: 1 - 10
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-10, January 2025.
Fasting during Ramadan involves abstaining from food and drink from dawn to dusk for 29 to 30 days, annually. Dietitians, experts in food and nutrition, play a vital role in fostering the well-being of Canadians. Given that 1 in 20 Canadians are Muslim, access to culturally safe care is essential for their health. The consumption of adequate nutrients during the non-fasting hours is important for Muslims well-being. It is unknown whether dietitians in Canada feel comfortable and knowledgeable providing safe care during Ramadan. An online survey, was developed using the World Health Organization's Knowledge Attitude and Practice Protocol, and then reviewed for content validity by six dietitians. From 5 March 2023 to 1 April 2023, 159 Canadian dietitians, from a variety of practice areas, including acute care, community health, and private practice, completed the online survey. Descriptive statistics, cross tabulations, and χ2 tests, enhanced by post hoc analyses with Bonferroni correction, were employed to determine any relationship between categorical variables and identify significant associations or differences. While most participants demonstrated an adequate understanding of Ramadan fasting practices, including its duration and restrictions, 91% reported not receiving information on how to provide culturally safe care during their university degree. Many dietitians expressed discomfort providing care (43.7%, 69/158) and lacked adequate resources (51.3%, 81/158). Among the 37% of dietitians who did offer care to Muslims (58/157), the majority felt comfortable (72.1%, 44/58). This study reveals a gap in capacity to provide culturally safe care, highlighting the need for training interventions for nutrition professionals, and curriculum for dietetics programs.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-09T08:00:00Z
DOI: 10.1139/apnm-2024-0392
Issue No: Vol. 50 (2025)
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- The association of SLC16A1 (MCT1) gene polymorphism with body composition
changes during weight loss interventions: A randomized trial with
sex-dependent analysis-
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Authors: Rocío Cupeiro, Pedro J. Benito, Teresa Amigo, Domingo González-Lamuño
Pages: 1 - 12
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-12, January 2025.
Monocarboxylates, transported by monocarboxylate transporters (MCTs), have been proposed to influence energy homeostasis and exhibit altered metabolism during exercise. This study investigated the association between the Asp490Glu (T1470A) (rs1049434) polymorphism of the SLC16A1 (MCT1) gene and changes in body composition in males and females with overweight or obesity. The 173 participants (56.6% females) completed a 6-month randomized controlled trial, being assigned to the Supervised Exercise group (strength, endurance, or strength plus endurance training) or the Physical Activity (PA) Recommendations group. Participants were genotypically categorized as Asp/Asp (TT), Asp/Glu (TA), or Glu/Glu (AA). ANCOVA analysis showed main effects for genotype and interaction genotype × group (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-09T08:00:00Z
DOI: 10.1139/apnm-2024-0246
Issue No: Vol. 50 (2025)
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- Current evidence around key underrepresented women's health topics in
pregnancy and postpartum nutrition: a narrative review-
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Authors: Mai-Lei Woo Kinshella, Sophie E. Moore, Rajavel Elango
Pages: 1 - 16
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-16, January 2025.
Adequate nutrition during pregnancy and postpartum is critical to maternal and child health, but there is often a missing focus around health outcomes specifically for women. Women's health includes sex-specific biological attributes and socially constructed gender roles framing behaviours and practices. This narrative review aims to highlight key areas where women's health has been underrepresented in pregnancy and postpartum nutrition research. Current evidence and research gaps are discussed for nutritional requirements during pregnancy and lactation, maternal mortality and morbidity nutritional risk factors, preconception and postpartum nutrition, and gendered cultural norms and inequities in access to nutritious foods during pregnancy and postpartum. Important areas for future research include strengthening empirical evidence for nutritional requirements in pregnant and lactating populations, the relationship between maternal iron status, anaemia and maternal morbidities, linkages between nutrient status among women and adolescent girls to maternal health outcomes, postpartum nutrition for recovery, lactation, and long-term women's health outcomes, and strength-based cultural practices that can support adequate maternal nutrition. There is an ongoing need to include women in nutritional requirements research, and measure health outcomes for women to ensure creation of an evidence base on both sex and gender-based datasets.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-08T08:00:00Z
DOI: 10.1139/apnm-2024-0127
Issue No: Vol. 50 (2025)
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- Sex-related differences in motor unit firing rate and pennation angle
-
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Authors: Michael J. Marsala, Alicia M. Kells, Anita D. Christie
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
Motor unit firing rate (MUFR) and pennation angle were measured concurrently in males and females from submaximal to maximal intensities. Thirty participants, (16 female, 14 male) performed isometric dorsiflexion contractions at 20%, 40%, 60%, 80%, and 100% of maximal voluntary contraction (MVC). During each contraction, measures of MUFR were obtained via surface electromyography decomposition, and muscle fiber pennation angle and fascicle length were obtained via ultrasound. There was no significant interaction effect of sex and contraction intensity present for mean MUFR (p = 0.24), pennation angle (p = 0.98), or fascicle length (p = 0.81). Males had greater mean MUFR (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-08T08:00:00Z
DOI: 10.1139/apnm-2024-0202
Issue No: Vol. 50 (2025)
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- What do Canadian universities suggest on their webpages as future career
and educational pathways following completion of a kinesiology or exercise
science undergraduate program'-
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Authors: Taniya S. Nagpal, Hanna Randhawa, Rebecca Pallister, Jonathon R. Fowles, Myles W. O'Brien
Pages: 1 - 8
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-8, January 2025.
Kinesiology undergraduate programs are multidisciplinary, and graduates may navigate several post-graduate education and career pathways. This study summarized the pathways currently listed online by Canadian undergraduate programs following completion of a kinesiology or “exercise science” degree. An environmental scan was completed by reviewing Canadian undergraduate program (n = 59) webpages and their list of future pathways (n = 845). A content analysis summarized pathways into 46 common categories. The most mentioned pathway was education (n = 60), with coaching, health promotion and physiotherapy next (n = 46–48). Additional pathways included medical, allied health professions, business, and exercise training (n = 24–44). Most listed pathways likely require further training post-graduation.
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-08T08:00:00Z
DOI: 10.1139/apnm-2024-0248
Issue No: Vol. 50 (2025)
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- Skeletal muscle oxidative capacity related to intramyocellular lipid in
young but not in older individuals-
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Authors: Akito Yoshiko, Kana Shiozawa, Shiori Niwa, Hideyuki Takahashi, Teruhiko Koike, Kohei Watanabe, Keisho Katayama, Hiroshi Akima
Pages: 1 - 9
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-9, January 2025.
Skeletal muscles contain lipids inside and outside cells, namely intramyocellular lipids (IMCL) and extramyocellular lipids (EMCL), respectively; lipids have also been found to be interspersed between these muscles as adipose tissue, namely intermuscular adipose tissue (IMAT). Metabolized IMCL has been recognized as an important substrate for energy production and their metabolism is determined by the muscle oxidative capacity. Therefore, it has been speculated that muscle oxidative capacity is related to muscle lipid content. Excessive accumulation of EMCL and IMAT has been confirmed in older individuals, leading to metabolic disorders and a decline in muscle strength. However, whether EMCL and IMAT contribute to muscle lipid metabolism remains unknown. This study aimed to investigate whether muscle oxidative capacity is related to IMCL, EMCL, and IMAT in young and older individuals. A total of 18 young and 14 older individuals were included and their muscle oxidative capacity was assessed based on the recovery rate of muscle oxygen saturation after exercise, using near-infrared spectroscopy of the medial gastrocnemius. IMCL, EMCL, and IMAT were assessed using magnetic resonance spectroscopy and imaging. A relationship between muscle oxidative capacity and IMCL was confirmed in young (r = −0.47, P
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-06T08:00:00Z
DOI: 10.1139/apnm-2024-0272
Issue No: Vol. 50 (2025)
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- The effects of acute hot-water immersion on force steadiness and motor
unit discharge rate variability in young, healthy adults-
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Authors: Patrick Rodrigues, Lucas B.R. Orssatto, Gabriel S. Trajano, Lee Wharton, Geoffrey M. Minett
Pages: 1 - 7
Abstract: Applied Physiology, Nutrition, and Metabolism, Volume 50, Issue , Page 1-7, January 2025.
This study examined the effects of core and muscle temperature on force steadiness and motor unit discharge rate (MUDR) variability after a hot-water immersion session. Fifteen participants (6 women; 25 ± 6 years) completed neuromuscular assessments before and after either 42 °C (hot) or 36 °C (control) water immersion. Force steadiness was measured during knee extension, while HD-sEMG signals were recorded from vastus lateralis and medialis for MUDR variability analysis. Following water immersion, force steadiness decreased by 0.11% (p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-06T08:00:00Z
DOI: 10.1139/apnm-2024-0330
Issue No: Vol. 50 (2025)
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- Baseline nutrition risk as measured by SCREEN-8 predicts self-reported
12-month healthcare service use of older adults 3 years later-
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Authors: Heather H. Keller, Vanessa Trinca
Abstract: Applied Physiology, Nutrition, and Metabolism, Ahead of Print.
This study investigated whether nutrition risk, as measured by SCREEN-8 at baseline, was associated with self-reported healthcare service use in the past 12 months among community-dwelling older adults who were interviewed 3 years later. Data from the Canadian Longitudinal Study on Aging were used. SCREEN-8 assessed nutrition risk among community-dwelling persons ages 55+. Multivariable logistic regression determined if baseline SCREEN-8 score was associated with the following healthcare services reported to occur in the 12 months preceding the 3-year follow-up period: (i) overnight hospital admission (n = 13 623), (ii) emergency room visit (n = 13 614), (iii) contacting a family doctor (n = 13 616), (iv) visiting dental professional (n = 13 288), and (v) visiting a doctor due to an infection (n = 13 171) after adjusting for demographic and health variables. Those with higher SCREEN-8 scores (lower nutrition risk) had significantly lower odds of reporting: (i) an overnight hospital admission (χ2 (27, 13 587) = 10.59, p
Citation: Applied Physiology, Nutrition, and Metabolism
PubDate: 2025-01-02T08:00:00Z
DOI: 10.1139/apnm-2024-0288
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