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Exercising in a Hot...
Exercising in a Hot Environment : Which T-shirt to Wear?
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- Sperlich, Billy (författare)
- Univ Wuppertal, Dept Sport Sci, D-42119 Wuppertal, Germany,Department of Sport Science, University of Wuppertal, Wuppertal, Germany
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- Born, Dennis-Peter (författare)
- Univ Wuppertal, Dept Sport Sci, D-42119 Wuppertal, Germany,Department of Sport Science, University of Wuppertal, Wuppertal, Germany
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- Lefter, Marie Denise (författare)
- Univ Wuppertal, Dept Sport Sci, D-42119 Wuppertal, Germany,Department of Sport Science, University of Wuppertal, Wuppertal, Germany
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- Holmberg, Hans-Christer (författare)
- Mittuniversitetet,Avdelningen för hälsovetenskap,NVC,Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden
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(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- Engelska.
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Ingår i: Wilderness & environmental medicine (Print). - : Elsevier BV. - 1080-6032 .- 1545-1534. ; 24:3, s. 211-220
- Relaterad länk:
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http://www.wemjourna...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Objective. The aim of this study was to investigate thermoregulatory, cardiorespiratory, metabolic, and perceptual responses while running in a hot environment (31.7 degrees +/- 1.0 degrees C; 42% +/- 3% relative humidity) and wearing T-shirts made from different fiber types. Methods.-Eight well-trained men performed 4 tests wearing either a T-shirt made of 100% polyester with 4, 6, or 8 channels, or one made of 100% cotton. Each test consisted of 30 minutes running at 70% of peak oxygen uptake, followed by a ramp test to exhaustion and 15 minutes of recovery. Results.-There were no differences in skin, core, and body temperatures between fiber types during submaximal and high-intensity running (best P = .08). During recovery, body temperature and shivering/sweating sensations were lower when wearing 4- and 6-channel fibers (P <= .04) compared with cotton. The relative humidity at the chest and back were lower for all polyester T-shirts compared with cotton during and after submaximal and maximal running (P <= .007). Heart rate (best P = .10), oxygen uptake (P = .95), respiratory exchange ratio (best P = .93), ventilation (best P = .99), and blood lactate concentration (best P = .97) did not differ between the fiber types. Nor were any differences in time to exhaustion (best P = .76), ratings of perceived exertion (best P = .09), thermal sensation (best P = .07), or sensation of clothing wetness (best P = .36) discovered. Conclusions.-Although statistical analysis revealed lower shivering/sweating sensations while wearing 4- and 6-channel fiber shirts during recovery, with an improved chest and back microenvironment for all polyester T-shirts, the question remains whether these differences are of any practical relevance because the performance of the well-trained men was unaffected.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Idrottsvetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Sport and Fitness Sciences (hsv//eng)
Nyckelord
- clothing fiber heat stress high intensity microenvironment thermoregulation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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