Subjects -> HEALTH AND SAFETY (Total: 1542 journals)
    - CIVIL DEFENSE (22 journals)
    - DRUG ABUSE AND ALCOHOLISM (87 journals)
    - HEALTH AND SAFETY (725 journals)
    - WOMEN'S HEALTH (82 journals)

PHYSICAL FITNESS AND HYGIENE (130 journals)                     

Showing 1 - 130 of 130 Journals sorted alphabetically
ACSMs Health & Fitness Journal     Full-text available via subscription   (Followers: 15)
Acta Facultatis Educationis Physicae Universitatis Comenianae     Open Access   (Followers: 4)
Acta Kinesiologiae Universitatis Tartuensis     Open Access   (Followers: 1)
ACTIVE : Journal of Physical Education, Sport, Health and Recreation     Open Access   (Followers: 30)
Adapted Physical Activity Quarterly     Hybrid Journal   (Followers: 5)
African Journal for Physical, Health Education, Recreation and Dance     Full-text available via subscription   (Followers: 7)
Ágora para la Educación Física y el Deporte     Open Access  
Al.Qadisiya journal for the Sciences of Physical Education     Open Access   (Followers: 1)
American Journal of Sexuality Education     Hybrid Journal   (Followers: 4)
Annals of Applied Sport Science     Open Access   (Followers: 10)
Annals of Work Exposures and Health     Hybrid Journal   (Followers: 11)
Applied Physiology, Nutrition and Metabolism     Hybrid Journal   (Followers: 34)
Apunts. Medicina de l'Esport     Full-text available via subscription   (Followers: 1)
Arab Journal of Nutrition and Exercise     Open Access   (Followers: 1)
Archives of Exercise in Health and Disease     Open Access   (Followers: 7)
Arquivos de Ciências do Esporte     Open Access  
Arquivos em Movimento     Open Access   (Followers: 1)
Arrancada     Open Access   (Followers: 1)
Athletic Training & Sports Health Care     Full-text available via subscription   (Followers: 24)
BMC Obesity     Open Access   (Followers: 8)
BMC Sports Science, Medicine and Rehabilitation     Open Access   (Followers: 35)
Childhood Obesity     Hybrid Journal   (Followers: 24)
Clinical Journal of Sport Medicine     Hybrid Journal   (Followers: 36)
Comparative Exercise Physiology     Hybrid Journal   (Followers: 24)
Cultura, Ciencia y Deporte     Open Access   (Followers: 2)
Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity     Hybrid Journal   (Followers: 24)
eJRIEPS : Ejournal de la recherche sur l'intervention en éducation physique et sport     Open Access  
Environmental Health and Preventive Medicine     Open Access   (Followers: 4)
Éthique & Santé     Full-text available via subscription  
Fat Studies : An Interdisciplinary Journal of Body Weight and Society     Partially Free   (Followers: 3)
Fisioterapia em Movimento     Open Access  
Fitness & Performance Journal     Open Access   (Followers: 3)
Food Science and Human Wellness     Open Access   (Followers: 5)
Frontiers in Sports and Active Living     Open Access   (Followers: 2)
Gelanggang Pendidikan Jasmani Indonesia     Open Access  
German Journal of Exercise and Sport Research : Sportwissenschaft     Hybrid Journal   (Followers: 4)
Geron     Full-text available via subscription  
Global Journal of Health and Physical Education Pedagogy     Full-text available via subscription   (Followers: 2)
Health and Quality of Life Outcomes     Open Access   (Followers: 15)
Health Education Journal     Hybrid Journal   (Followers: 17)
Health Marketing Quarterly     Hybrid Journal   (Followers: 3)
Health Physics     Hybrid Journal   (Followers: 7)
Home Healthcare Now     Hybrid Journal   (Followers: 5)
Human Movement     Open Access   (Followers: 14)
Human Movement Science     Hybrid Journal   (Followers: 17)
IISE Transactions on Occupational Ergonomics and Human Factors     Hybrid Journal  
Indonesia Performance Journal     Open Access  
İnönü Üniversitesi Beden Eğitimi ve Spor Bilimleri Dergisi     Open Access  
International Journal for Vitamin and Nutrition Research     Hybrid Journal   (Followers: 12)
International Journal of Applied Exercise Physiology     Open Access   (Followers: 58)
International Journal of Athletic Therapy & Training     Hybrid Journal   (Followers: 15)
International Journal of Behavioral Nutrition and Physical Activity     Open Access   (Followers: 30)
International Journal of Men's Health     Full-text available via subscription   (Followers: 5)
International Journal of Obesity     Hybrid Journal   (Followers: 93)
International Journal of Obesity Supplements     Full-text available via subscription   (Followers: 8)
International Journal of Qualitative Studies on Health and Well-Being     Open Access   (Followers: 21)
International Journal of Spa and Wellness     Hybrid Journal  
International Journal of Sport, Exercise & Training Sciences     Open Access   (Followers: 2)
International Journal of Yoga     Open Access   (Followers: 17)
Isokinetics and Exercise Science     Hybrid Journal   (Followers: 12)
Journal of American College Health     Hybrid Journal   (Followers: 4)
Journal of Athlete Development and Experience     Open Access   (Followers: 1)
Journal of Bioenergetics and Biomembranes     Hybrid Journal   (Followers: 1)
Journal of Human Performance in Extreme Environments     Open Access   (Followers: 2)
Journal of Human Sport and Exercise     Open Access   (Followers: 19)
Journal of Motor Learning and Development     Hybrid Journal  
Journal of Physical Activity and Health     Hybrid Journal   (Followers: 11)
Journal of Physical Activity and Hormones     Open Access   (Followers: 1)
Journal of Physical Activity Research     Open Access   (Followers: 5)
Journal of Physical Education and Human Movement     Open Access  
Journal of Physical Education and Sport Sciences     Open Access   (Followers: 2)
Journal of Physical Education Health and Sport     Open Access   (Followers: 1)
Journal of Physical Education, Recreation & Dance     Full-text available via subscription   (Followers: 15)
Journal of Science in Sport and Exercise     Hybrid Journal   (Followers: 4)
Journal of Sport and Health Science     Open Access   (Followers: 22)
Journal of Sport Sciences and Fitness     Open Access   (Followers: 16)
Journal of Strength and Conditioning Research     Hybrid Journal   (Followers: 77)
Journal of Yoga & Physical Therapy     Open Access   (Followers: 7)
Jurnal Pendidikan Kesehatan Rekreasi     Open Access   (Followers: 3)
Kerbala Magazine of Physical Edu. Seiences     Open Access   (Followers: 2)
Kinesiology : International Journal of Fundamental and Applied Kinesiology     Open Access  
Kinesiology Review     Hybrid Journal   (Followers: 6)
Krankenhaus-Hygiene - Infektionsverhütung     Full-text available via subscription  
Measurement in Physical Education and Exercise Science     Hybrid Journal   (Followers: 7)
Médecine & Nutrition     Full-text available via subscription  
Mental Health and Physical Activity     Hybrid Journal   (Followers: 17)
MHSalud : Movimiento Humano y Salud     Open Access  
Obesity     Hybrid Journal   (Followers: 58)
Obesity Research & Clinical Practice     Full-text available via subscription   (Followers: 21)
Obesity Reviews     Hybrid Journal   (Followers: 26)
Obesity Science & Practice     Open Access   (Followers: 1)
Open Obesity Journal     Open Access   (Followers: 1)
Pain Management in General Practice     Full-text available via subscription   (Followers: 12)
PALAESTRA : Adapted Sport, Physical Education, and Recreational Therapy     Full-text available via subscription   (Followers: 4)
Physical Activity and Health     Open Access   (Followers: 3)
Physical Education & Sport Pedagogy     Hybrid Journal   (Followers: 12)
Preventing Chronic Disease     Free   (Followers: 2)
Psychology of Sport and Exercise     Hybrid Journal   (Followers: 20)
Quality in Sport     Open Access   (Followers: 1)
Race and Yoga     Open Access   (Followers: 5)
RBNE - Revista Brasileira de Nutrição Esportiva     Open Access   (Followers: 1)
RBONE - Revista Brasileira de Obesidade, Nutrição e Emagrecimento     Open Access  
RBPFEX - Revista Brasileira de Prescrição e Fisiologia do Exercício     Open Access  
Research Quarterly for Exercise and Sport     Hybrid Journal  
Retos : Nuevas Tendencias en Educación Física, Deportes y Recreación     Open Access  
Revista Andaluza de Medicina del Deporte     Open Access   (Followers: 2)
Revista Brasileira de Atividade Física & Saúde     Open Access  
Revista Brasileira de Ciências do Esporte     Open Access   (Followers: 1)
Revista Brasileira de Cineantropometria & Desempenho Humano     Open Access   (Followers: 1)
Revista Brasileira de Educação Física e Esporte     Open Access   (Followers: 2)
Revista da Educação Física : UEM     Open Access   (Followers: 1)
Revista Iberoamericana de Psicología del Ejercicio y el Deporte     Open Access  
Revista Internacional de Medicina y Ciencias de la Actividad Física y del Deporte : International Journal of Medicine and Science of Physical Activity and Sport     Open Access   (Followers: 1)
Revue phénEPS / PHEnex Journal     Open Access  
Scandinavian Journal of Sport and Exercise Psychology     Open Access   (Followers: 7)
SIPATAHOENAN : South-East Asian Journal for Youth, Sports & Health Education     Open Access  
Spor Bilimleri Dergisi / Hacettepe Journal of Sport Sciences     Open Access  
Sport and Fitness Journal     Open Access   (Followers: 5)
Sport Health     Full-text available via subscription   (Followers: 3)
Sport Sciences for Health     Hybrid Journal   (Followers: 5)
Sport- und Präventivmedizin     Hybrid Journal   (Followers: 3)
SPORTIVE : Journal Of Physical Education, Sport and Recreation     Open Access   (Followers: 6)
Sports     Open Access   (Followers: 2)
Sports Biomechanics     Hybrid Journal   (Followers: 29)
Sports Health: A Multidisciplinary Approach     Hybrid Journal   (Followers: 4)
Strength & Conditioning Journal     Hybrid Journal   (Followers: 64)
Timisoara Physical Education and Rehabilitation Journal     Open Access   (Followers: 4)
Turkish Journal of Sport and Exercise     Open Access  
Yoga Mimamsa     Open Access   (Followers: 2)
Здоровье человека, теория и методика физической культуры и спорта     Open Access  


Similar Journals
Journal Cover
Journal of Human Performance in Extreme Environments
Number of Followers: 2  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2327-2937
Published by Purdue University Homepage  [16 journals]
  • Thermoregulatory Adaptations following Sprint Interval Training

    • Authors: Jonathan E. Wingo et al.
      Abstract: Traditional endurance training typically involves weeks of long-duration (60–90 min) exercise performed at a moderate to vigorous intensity. An alternative paradigm, sprint interval training, is characterized by multiple bouts of short-duration, high-intensity exercise. Similar fitness benefits from the two paradigms have been demonstrated, but whether sprint interval training—like traditional endurance training—induces heat acclimation remains unclear.PurposeTo test the hypothesis that sprint interval training performed over six sessions results in measureable thermoregulatory and cardiovascular adaptations consistent with heat acclimation.MethodsSeven untrained men [mean ± SD, 13 ± 5% body fat, 22 ± 3 y, 3.1 ± 0.3 L/min peak oxygen uptake (V̇O2peak)] performed 6 sprint interval training sessions over 12 days with 48­–72 h between sessions. Sessions consisted of 4–6 thirty-second Wingate Anaerobic Tests separated by ~4 min. Before and after the two-week training protocol, participants cycled for 30 min at 65% V̇O2peak in 25 °C to assess the effects of sprint interval training on heat acclimation.ResultsMain outcome variables (onset of sweating, sweat sensitivity, heart rate at end of exercise, percent change in plasma volume, and core temperature change from pre- to post-exercise) were not different from pre- to post-training (all p> 0.05).ConclusionTwo weeks of sprint interval training performed under the conditions specified does not result in heat acclimation.
      PubDate: Fri, 13 Apr 2018 14:06:55 PDT
  • Research and Efforts in the Human Dimension: A Special Issue on
           Human-Systems Research in the U.S. Department of Energy

    • Authors: Phil C. Bennett et al.
      PubDate: Tue, 27 Mar 2018 15:03:40 PDT
  • Foreword to Special Issue on Human-Systems Research Across the U.S.
           Department of Energy

    • Authors: Ronald Laurids Boring
      PubDate: Tue, 27 Mar 2018 15:03:31 PDT
  • Physiological and Cognitive Factors Related to Human Performance During
           the Grand Canyon Rim-to-Rim Hike

    • Authors: Kristin Divis et al.
      Abstract: Exposure to extreme environments is both mentally and physically taxing, leading to suboptimal performance and even life-threatening emergencies. Physiological and cognitive monitoring could provide the earliest indicator of performance decline and inform appropriate therapeutic intervention, yet little research has explored the relationship between these markers in strenuous settings. The Rim-to-Rim Wearables at the Canyon for Health (R2RWATCH) study is a research project at Sandia National Laboratories funded by the Defense Threat Reduction Agency to identify which physiological and cognitive phenomena collected by non-invasive wearable devices are the most related to performance in extreme environments. In a pilot study, data were collected from civilians and military warfighters hiking the Rim-to-Rim trail at the Grand Canyon. Each participant wore a set of devices collecting physiological, cognitive, and environmental data such as heart rate, memory, ambient temperature, etc. Promising preliminary results found correlates between physiological markers recorded by the wearable devices and decline in cognitive abilities, although further work is required to refine those measurements. Planned follow-up studies will validate these findings and further explore outstanding questions.
      PubDate: Wed, 24 Jan 2018 12:53:37 PST
  • Employing a User-Centered Design Process for Cybersecurity Awareness in
           the Power Grid

    • Authors: Jean C. Scholtz et al.
      Abstract: In this paper, we discuss the process we are using in the design and implementation of a tool to improve the situation awareness of cyberattacks in the power grid. We provide details of the steps we have taken to date and describe the steps that still need to be accomplished. The focus of this work is to provide situation awareness of the power grid to staff from different, non-overlapping roles in an electrical transmission organization in order to facilitate an understanding of a possible occurrence of a cyberattack. Our approach follows a user-centered design process and includes determining the types of information to display, the format of the displays, and the personnel to whom the display should be shown. Additionally, there is the issue of how much help the tool can provide in the way of assessing the probability of a cyberattack given the current status of various portions of the power grid. Regardless, the ability to provide a common operating picture should enable the various groups to collaborate on a response.
      PubDate: Wed, 24 Jan 2018 12:53:31 PST
  • Deep Gaze Velocity Analysis During Mammographic Reading for Biometric
           Identification of Radiologists

    • Authors: Hong-Jun Yoon et al.
      Abstract: Several studies have confirmed that the gaze velocity of the human eye can be utilized as a behavioral biometric or personalized biomarker. In this study, we leverage the local feature representation capacity of convolutional neural networks (CNNs) for eye gaze velocity analysis as the basis for biometric identification of radiologists performing breast cancer screening. Using gaze data collected from 10 radiologists reading 100 mammograms of various diagnoses, we compared the performance of a CNN-based classification algorithm with two deep learning classifiers, deep neural network and deep belief network, and a previously presented hidden Markov model classifier. The study showed that the CNN classifier is superior compared to alternative classification methods based on macro F1-scores derived from 10-fold cross-validation experiments. Our results further support the efficacy of eye gaze velocity as a biometric identifier of medical imaging experts.
      PubDate: Wed, 24 Jan 2018 12:53:25 PST
  • Investigating Sociodemographic Disparities in Cancer Risk Using Web-Based

    • Authors: Hong-Jun Yoon et al.
      Abstract: Cancer health disparities due to demographic and socioeconomic factors are an area of great interest in the epidemiological community. Adjusting for such factors is important when developing cancer risk models. However, for digital epidemiology studies relying on online sources such information is not readily available. This paper presents a novel method for extracting demographic and socioeconomic information from openly available online obituaries. The method relies on tailored language processing rules and a probabilistic scheme to map subjects’ occupation history to the occupation classification codes and related earnings provided by the U.S. Census Bureau. Using this information, a case-control study is executed fully in silico to investigate how age, gender, parity, and income level impact breast and lung cancer risk. Based on 48,368 online obituaries (4,643 for breast cancer, 6,274 for lung cancer, and 37,451 cancer-free) collected automatically and a generalized cancer risk model, our study shows strong association between age, parity, and socioeconomic status and cancer risk. Although for breast cancer the observed trends are very consistent with traditional epidemiological studies, some inconsistency is observed for lung cancer with respect to socioeconomic status.
      PubDate: Wed, 24 Jan 2018 12:53:20 PST
  • Incorporating Human Readiness Levels at Sandia National Laboratories

    • Authors: Judi E. See et al.
      Abstract: Since 2010, the concept of human readiness levels has been under development as a possible supplement to the existing technology readiness level (TRL) scale. The intent is to provide a mechanism to address safety and performance risks associated with the human component in a system that parallels the TRL structure already familiar to the systems engineering community. Sandia National Laboratories in Albuquerque, New Mexico, initiated a study in 2015 to evaluate options to incorporate human readiness planning for Sandia processes and products. The study team has collected the majority of baseline assessment data and has conducted interviews to understand staff perceptions of four different options for human readiness planning. Preliminary results suggest that all four options may have a vital role, depending on the type of work performed and the phase of product development. Upon completion of data collection, the utility of identified solutions will be assessed in one or more test cases.
      PubDate: Wed, 24 Jan 2018 12:53:13 PST
  • Response of Appetite and Appetite Regulating Hormones to Acute Hypoxia

    • Authors: Morgan Busboom et al.
      Abstract: AIM: To determine the acute response of appetite and appetite regulating hormones after exposure to simulated altitude. METHODS: Seven males and five females (height: 178.9 ± 2.3 cm; weight: 77.3 ± 7.2 kg; body fat: 18.4 ± 1.7%) participated in two, three-hour trials in a hypoxic (5000 m) and normoxic (350 m) environment. Blood samples were collected prior to and immediately following three hours of exposure for the measurement of leptin, adiponectin, and acylated ghrelin. Appetite, acute mountain sickness, heart rate, blood oxygenation, tissue oxygenation, respiration rate, and whole body gases were also measured. RESULTS: Leptin was not different between hypoxic (5.8 ± 1.8 ng ml-1) and normoxic trials (6.2 ± 2.0 ng ml-1; p = 0.603). Adiponectin was not different between hypoxic (9.0 ± 0.2 µg ml-1) and normoxic trials (8.4 ± 0.7 µg ml-1; p = 0.216). Acylated ghrelin was not different between hypoxic (15.0 ± 3.8 pg ml-1) and normoxic trials (16.3 ± 4.6 pg ml-1; p = 0.285). Appetite scores were not different between trials (p> 0.05) with the exception of fullness which was greater in the hypoxic condition (p = 0.027). Heart rate and symptoms of acute mountain sickness were higher while blood and tissue oxygenation were lower in the hypoxic trial (p < 0.05). No differences were noted in other metabolic parameters (p > 0.05). CONCLUSION: Appetite and appetite regulating hormones are not affected by three hours of hypoxic exposure, and thus some of these negative consequences of hypoxic exposure may not be evident with short exposure times.
      PubDate: Fri, 15 Dec 2017 07:09:19 PST
  • Coping in Context: Dispositional and Situational Coping of Navy Divers and

    • Authors: Charles H. Van Wijk
      Abstract: Specialists working in isolated, confined, and extreme environments may need to negotiate unique combinations of potentially stressful circumstances. This paper reports on three studies using the Brief COPE to examine some of the dispositional and situational coping strategies reported by navy divers and submariners.The first study investigated whether individual members of these specialist groups would favor similar coping response styles, and found that divers (N = 174) and submariners (N = 195) generally report similar coping styles, with some context appropriate nuances in their reports. Further, they share much of their profiles with other high-demand occupational settings, making their coping style profiles unique only in degree, rather than direction.The second study examined whether these navy specialists’ coping response styles would be stable across time, and through repeat administration of the Brief COPE (N = 237), found that they were remarkably stable over a period of almost 2 years.The third study investigated whether the same dispositional profile will be visible during specific submarine missions, or whether different, e.g., situational, coping strategies would be reported on board. Submariners appear to rely on similar coping strategies whether ashore or at sea, while also drawing on additional—and contextually appropriate—situational strategies while at sea. Thus while they rely on dispositional coping styles, they also seem responsive to changing environments during deployments.Practically, these findings could be used to assist divers and submariners to develop optimal coping strategies suited to their environments.
      PubDate: Tue, 03 Oct 2017 07:32:32 PDT
  • Coping With the Subterranean Environment: A Thematic Content Analysis of
           the Narratives of Cave Explorers

    • Authors: Raymond R. MacNeil et al.
      Abstract: In addition to various physical obstacles, the cave environment presents numerous psychological stressors that challenge human explorers. Sources of psychological stress include logistic issues (e.g., limitations to access, communication, and the availability of equipment), a lack of normal sensory stimuli, isolation and confinement, high performance demands, and social conflict associated with team coordination and requirements for cooperation. Thus, the success and safety of caving expeditions depend on the ability of explorers to effectively cope with highly stressful conditions and task demands. This was the first study to investigate coping within the context of caving and cave exploration. Utilizing scoring criteria from Suedfeld, Brcic, and Legkaia (2009), the narratives of 30 cave explorers were content analyzed for mentions of coping strategies across different expedition phases (pre-, during-, and postexpedition). Nationality and leadership status were also examined as potential moderators of coping. Narratives on the exploration of terrestrial, underwater, and terraqueous (i.e. sump-containing) caves were treated as unique conditions given marked differences in these forms of cave exploration. Consistent with previous research on groups performing in extreme and unusual environments, references to problem-focused coping strategies were, overall, more common than those to emotion-focused strategies. However, temporal analyses of coping across expedition phases showed that a more balanced coping orientation emerged post-expedition, with a significant difference in the use of problem-focused versus emotion-focused strategies no longer detectable. Significant effects of cave exploration type and nationality on the reference percentage of particular coping strategies were also detected. The relevance and implications of these findings are discussed, as well as limitations and directions for future research.
      PubDate: Wed, 27 Sep 2017 09:13:26 PDT
  • Energy Balance During a Self-Sufficient, Multistage Ultramarathon

    • Authors: Paul A. Hough et al.
      Abstract: Endurance athletes are recommended to maintain energy balance and ensure adequate energy availability (EA) so that endurance performance is not compromised. Purpose: Describe and evaluate the energy balance of an athlete competing in a self-sufficient, multistage ultramarathon (MSU). Methods: A male endurance athlete (age 35 years; height 183.0 cm; body mass 78.4 kg; VO2max 66 ml/kg/min) volunteered to take part in this observational case study prior to competing in the Marathon des Sables (MdS) 2016. The subject self-reported energy intake (EI) by reviewing his dietary plan following each stage. Basal metabolic rate (BMR) was estimated prior to the MdS based on fat-free mass. Distance and moving speed were recorded using a GPS device throughout the race. Exercise energy expenditure (EEE) was calculated using the GPS device algorithm. Total energy expenditure (TEE) was calculated by adding the athlete’s BMR to the recorded EEE. Energy balance was calculated by subtracting EI from TEE. Results: Mean daily EI was 2946 ± 358 kcal and daily EEE was 3006 ± 1030 kcal. This resulted in a total energy deficit of 9609 kcal with a daily energy deficit of 1922 ± 952 kcal/day. The athlete did not report any subjective feelings of hunger at any point during the event. Conclusions: The athlete did not consume enough calories to meet estimated energy requirements, resulting in a negative energy balance and low EA throughout the event. Relying on subjective perception of hunger to modulate energy intake is an ineffective strategy during a MSU.
      PubDate: Wed, 06 Sep 2017 13:21:30 PDT
  • Stress-Related Growth in Two Challenging Conditions

    • Authors: Iva Solcova et al.
      Abstract: In the last few years, attention has been given not only to negative impacts of stressful conditions but also to possible positive outcomes. The present study was devoted to personal growth in two challenging conditions in two samples of participants coming from different nations and different cultural backgrounds. The study extends existing knowledge by more intimate insight into the different facets of social and cognitive/affective personal growth. The experience of personal growth was individualized as far as the number of changes, their intensity, and facets/items in which the changes occurred.Least affected was the spirituality area. The reason is probably that the conditions of our studies, no matter how stressful, were not strong enough to affect such a deeply intimate and strongly held individual process as is belief in God. The substantial point is that in both our studies the participants underwent no unexpected aversive event, but an undertaking of their own choosing.
      PubDate: Fri, 18 Aug 2017 07:11:19 PDT
  • Exercise-Induced Interleukin-6 and Metabolic Responses in Hot, Temperate,
           and Cold Conditions

    • Authors: Nicholas E. Dinan et al.
      Abstract: The purpose of this study was to determine the effects of exercise in hot, cold, and temperate environments on plasma interleukin-6 (IL-6). Eleven recreationally trained males (age = 25 ± 4 years, height = 178 ± 5 cm, weight = 79.4 ± 13.5 kg, body fat = 14.7 ± 3.6%, VO2 peak = 54.6 ± 11.5 ml kg-1 min-1) performed a 1 hr cycling bout in hot (33 °C), cold (7 °C), and temperate (20 °C) environments at 60% of Wmax followed by 3 hr of supine recovery in temperate conditions. Expired gases were measured every 15 min during exercise and once every hour during recovery. Heart rate was continuously measured throughout the trials. Blood samples were obtained from the antecubital vein pre-exercise, immediately post-exercise, and 3 hr post-exercise. Blood samples were analyzed for plasma concentrations of IL-6 using a commercial ELISA kit. Plasma IL-6 concentrations were significantly higher immediately post-exercise (14.8 ± 1.6 pg ml-1, p = 0.008) and 3 hr post-exercise (14.8 ± 0.9 pg ml-1, p = 0.018) compared to pre-exercise (11.4 ± 2.4 pg ml-1), across all trials. There were no differences in plasma IL-6 concentrations (p = 0.207) between temperature conditions.Oxygen consumption and heart rate were higher and respiratory exchange ratio was lower in the hot compared to other conditions (p < 0.05). These data indicate that the temperature in which exercise occurs does not affect acute plasma IL-6 response despite differences in metabolic state.
      PubDate: Fri, 11 Aug 2017 12:48:16 PDT
  • Wilderness Courage Scale (WCS)

    • Authors: Piotr Prochniak
      Abstract: This article presents a new tool—the Wilderness Courage Scale. The Wilderness Courage Scale is a scale that diagnoses undertaking activity in dangerous natural environments, despite personal fears. The validity of the Wilderness Courage Scale was tested using exploratory and confirmatory factor analyses. The results of factor analyses verified the one-factor structure. The questionnaire’s internal consistency and intercorrelations were also tested. The Wilderness Courage Scale correlates with sensation seeking, some personality traits, and coping forms. The author discusses the findings in regard to the Wilderness Courage Scale as an instrument to measure exploration of dangerous natural environments. However, further studies need to be carried out in other sample groups to further validate the scale.
      PubDate: Wed, 31 May 2017 17:57:32 PDT
  • Coping Strategies Used During an Extreme Antarctic Expedition

    • Authors: Nathan Smith et al.
      Abstract: The present report documents the strategies used to deal with stress during an extreme Antarctic expedition. Coping strategies identified are based on experiences shared by the leader of the Scott Expedition and co-author of the report, Ben Saunders. A variety of problem- and emotion-focused techniques were utilized during the expedition and specific contextual and practical details are provided. Information offered in the article can be used to prepare future Antarctic expedition teams to manage stressors faced while undertaking extreme journeys in the higher latitudes.
      PubDate: Mon, 27 Feb 2017 11:20:42 PST
  • ‘‘Covert Coping’’ in Extreme Environments: Insights from South
           African Submarines

    • Authors: Charles H. Van Wijk et al.
      Abstract: Submariners are a group of people who live and work in enclosed habitats. In this confined environment, they need to balance the emotional needs of individuals with the resources of the group, to ensure effective coping for all. This study explored the mechanisms of maintaining this balance.Observations and a self-report measure (a modified Brief COPE) were used to describe the coping of submariners during deployment. Findings from the thematic analysis and self-report instrument are briefly described. An apparent contrast between the qualitative observations and quantitative data was noted, and when closely examined reveal two mechanisms whereby submariners managed their individual psychological needs without unbalancing the psychological state of the collective group. These were, firstly, the use of humor and talking nonsense as sublimated—or covert—way of venting emotions, and secondly, the use of rituals such as mealtimes as covert opportunities to provide and receive psychological support.This study illustrates how groups living in enclosed habitats may use covert mechanisms to cope with emotional needs, in order to maintain the emotional balance in the confined environment.
      PubDate: Thu, 21 Jul 2016 08:01:43 PDT
  • Effects of Pre-acclimatization Applying the ‘‘Climb High and Sleep
           Low’’ Maxim: An Example of Rapid but Safe Ascent to Extreme Altitude

    • Authors: Martin Burtscher et al.
      Abstract: Pre-acclimatization at a convenient high-altitude location may represent an appropriate method before climbing a more hostile target mountain. The aim of the present field report was to demonstrate the effectiveness of such pre-acclimatizing applying the ‘‘climb high sleep low’’ maxim for a subsequent rapid ascent to almost 7000 m. After some pre-acclimatization in the Alps the authors flew to Chile for further pre-acclimatization in the Aymara village of Putre (3650 m). From there they undertook sojourns up to altitudes of 5700 m within 3 days. Subsequently they went back to Arica (sea level) and climbed Ojos del Salado (6893 m) within 5 days without any health problems. Measurements of heart rate and arterial oxygen saturation and of cerebral oxygenation by near infrared spectroscopy at rest and during exercise indicated adequate acclimatization status. This field report demonstrates highly effective pre-acclimatization by the ‘‘climb high and sleep low’’ strategy supporting anecdotal reports. The up and down strategy may likely have induced hypoxia (pre)conditioning and subsequently allowed rapid ascent to extreme altitudes without any complications. The duration of the carry-over effect after pre-acclimatization has to be evaluated and proposed physiological mechanisms have to be proved by controlled studies in larger samples.
      PubDate: Thu, 21 Jul 2016 07:22:23 PDT
  • Measure Athletes’ Volition—Short: Evidences for Construct
           Validity and Reliability

    • Authors: Ioannis Proios et al.
      Abstract: The Measure Athletes’ Volition consists of 23 items that measure six elements of volitional competences. The purpose of the present study was to examine whether a subset of these items could form a short version of the scale; to provide evidence for the structural validity and internal consistency of the short version; and to test validity issues of the new scale. A total of 831 individuals from three different samples completed the long version of the scale. Results indicated that the short version consisted of 15 items that measured volitional competences of persistence, expediency, and purposefulness. This scale had acceptable internal consistency and construct validity (differences between groups and convergent and concurrent validity). In conclusion, the short version of the scale is a reliable and valid measure for volitional competences.
      PubDate: Tue, 12 Jul 2016 13:56:21 PDT
  • Pre-Mission Input Requirements to Enable Successful Sample Collection by a
           Remote Field/EVA Team

    • Authors: Barbara A. Cohen et al.
      Abstract: We used a field excursion to the West Clearwater Lake Impact structure as an opportunity to test factors that contribute to the decisions a remote field team (for example, astronauts conducting extravehicular activities (EVA) on planetary surfaces) makes while collecting samples for return to Earth. We found that detailed background on the analytical purpose of the samples, provided to the field team, enables them to identify and collect samples that meet specific analytical objectives. However, such samples are not always identifiable during field reconnaissance activities, and may only be recognized after outcrop characterization and interpretation by crew and/or science team members. We therefore recommend that specific time be allocated in astronaut timeline planning to collect specialized samples, that this time follow human or robotic reconnaissance of the geologic setting, and that crew member training should include exposure to the laboratory techniques and analyses that will be used on the samples upon their return to terrestrial laboratories.
      PubDate: Thu, 24 Dec 2015 19:41:14 PST
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