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Journal of Physical Activity Research
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This is an Open Access Journal

Open Access journal
ISSN (Print) 2574-4437 - ISSN (Online) 2574-4437
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BriefTrends: State-Specific Prevalence of Meeting Muscle-Strengthening
Activity (MSA) Guidelines in U.S. Adults, 2017-2019
- Authors: Peter D. Hart
  Pages: 63 - 64
  Abstract: This BriefTrends describes the prevalence (%) of adults meeting muscle-strengthening activity (MSA) guidelines across U.S. states.
  PubDate: 2023-10-09
  DOI: 10.12691/jpar-8-2-1
  Issue No: Vol. 8, No. 2 (2023)
The Impact of Moderate Intensities of Intermittent Interval Walking on
Excess Post-exercise Oxygen Consumption
- Authors: Curtis Fennell; Robert L. Herron, Shawn M. Mitchell, Stacy H. Bishop, Emily L. Langford, Jermaine B. Mitchell
  Pages: 65 - 72
  Abstract: This study evaluated the effects of continuous and intermittent walking on oxygen uptake (V̇O2), Rating of Perceived Exertion (RPE), and enjoyment during exercise, and excess post-exercise oxygen consumption (EPOC) and enjoyment after exercise. Methods: Four women and six men (mean ± SD) aged 24 ± 5 years completed four walking bouts in counterbalanced order matched for volume (90 metabolic equivalent [MET]-min): 1) one, 30-min continuous walking (CW) bout at moderate-intensity (3 METs; ≈4.8 km/h), 2) three, 10-min intermittent walking bouts (IW) at moderate-intensity (3 METs; ≈4.8 km/h) separated by 20 min of rest, 3) three, 8-min interval walking (IIW1) bouts at moderate-intensity (5 METs; ≈6.4 km/h: 3 METs; ≈4.8 km/h) separated by 20 min of rest, and 4) three, 8-min 40-s interval walking (IIW2) bouts at moderate-intensity (5 METs; ≈6.4 km/h: 3 METs; ≈4.8 km/h separated by 20 min of rest. VO2 was measured during exercise and EPOC was measured for 20 minutes post exercise. RPE was assessed during exercise and enjoyment of exercise was assessed during- and post exercise. Results: Average accumulated O2 uptake during exercise and EPOC in IW (39,186 ± 4,290 mL; EPOC: 2,582 ± 339 mL), IIW1 (36,964 ± 3,789 mL; EPOC: 3,365 ± 507 mL), and IIW2 (35,804 ± 3,979 mL; EPOC: 3,083 ± 339 mL) were higher (all p < 0.05) than CW (24,500 ± 2,427 mL; EPOC: 892 ± 73 mL). There were no differences in average RPE (p = 0.17) or average enjoyment (all p ≤ 0.05) across time points or between conditions. Conclusion: In healthy, young adults, moderate-intensity intermittent walking and intermittent interval walking protocols resulted in higher energy expenditure during and after exercise – as reflected by accumulated VO2 uptake and EPOC, respectively – compared to moderate-intensity continuous walking matched by MET-min with no difference in enjoyment or RPE.
  PubDate: 2023-10-26
  DOI: 10.12691/jpar-8-2-2
  Issue No: Vol. 8, No. 2 (2023)
Effects of School Closure Due to COVID-19 on the Physical Fitness of
Japanese Kindergarteners: A Longitudinal Study
- Authors: Sho Aoyama
  Pages: 73 - 77
  Abstract: The present study aimed to longitudinally clarify differences in physical fitness between Japanese kindergarteners who experienced school closure due to COVID-19 (COVID-19 pandemic group) and those who did not (control group). For the COVID-19 pandemic group, 51 children underwent physical fitness measurements at three years old in November 2019, four years old in November 2020, and five years old in November 2021. In the control group, 52 children underwent similar measurements at three years old in November 2017, four years old in November 2018, and five years old in November 2019. For physical fitness measurements, I performed an analysis of variance (ANOVA) of group × time for each gender. Regarding body support duration, the COVID-19 pandemic group performed significantly lower than the control group at four and five years old. The present study longitudinally revealed that muscle endurance among Japanese kindergarteners who experienced school closure due to COVID-19 was impaired.
  PubDate: 2023-10-26
  DOI: 10.12691/jpar-8-2-3
  Issue No: Vol. 8, No. 2 (2023)

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