دورية أكاديمية
Fitness-related differences in the rate of whole-body evaporative heat loss in exercising men are heat-load dependent.
العنوان: | Fitness-related differences in the rate of whole-body evaporative heat loss in exercising men are heat-load dependent. |
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المؤلفون: | Lamarche DT; Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada., Notley SR; Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada., Louie JC; Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada., Poirier MP; Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada., Kenny GP; Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada. |
المصدر: | Experimental physiology [Exp Physiol] 2018 Jan 01; Vol. 103 (1), pp. 101-110. Date of Electronic Publication: 2017 Nov 22. |
نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
اللغة: | English |
بيانات الدورية: | Publisher: Wiley-Blackwell Country of Publication: England NLM ID: 9002940 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1469-445X (Electronic) Linking ISSN: 09580670 NLM ISO Abbreviation: Exp Physiol Subsets: MEDLINE |
أسماء مطبوعة: | Publication: Cambridge, Eng : Wiley-Blackwell Original Publication: Cambridge ; New York, NY, USA : Published for the Physiological Society by Cambridge University Press, c1990- |
مواضيع طبية MeSH: | Hot Temperature*, Body Temperature/*physiology , Body Temperature Regulation/*physiology , Exercise/*physiology , Heart Rate/*physiology , Physical Fitness/*physiology, Adolescent ; Adult ; Calorimetry/methods ; Humans ; Male ; Thermogenesis/physiology ; Young Adult |
مستخلص: | New Findings: What is the central question of this study? Aerobic fitness modulates heat loss, but the heat-load threshold at which fitness-related differences in heat loss occur in young healthy men remains unclear. What is the main finding and its importance? We demonstrate using direct calorimetry that aerobic fitness modulates heat loss in a heat-load-dependent manner, with fitness-related differences occurring between young men who have low and high fitness when the heat load is ∼≥500 W. Although aerobic fitness has been known for some time to modulate heat loss, our findings define the precise heat-load threshold at which fitness-related differences occur. The effect of aerobic fitness (defined as rate of peak oxygen consumption) on heat loss during exercise is thought to be related to the level of heat stress. However, it remains unclear at what combined exercise and environmental (net) heat-load threshold these fitness-related differences occur. To identify this, we assessed whole-body heat exchange (dry and evaporative) by direct calorimetry in young (22 ± 3 years) men matched for physical characteristics with low (Low-fit; 39.8 ± 2.5 ml O (© 2017 The Authors. Experimental Physiology © 2017 The Physiological Society.) |
فهرسة مساهمة: | Keywords: aerobic fitness; heat loss; thermoregulation |
تواريخ الأحداث: | Date Created: 20171021 Date Completed: 20190109 Latest Revision: 20190109 |
رمز التحديث: | 20231215 |
DOI: | 10.1113/EP086637 |
PMID: | 29052285 |
قاعدة البيانات: | MEDLINE |
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