Response of unacclimatized males to repeated weekly bouts of exercise in the heat

Barnett, Anthony and Maughan, Ron J. 1993, Response of unacclimatized males to repeated weekly bouts of exercise in the heat, British journal of sports medicine, vol. 27, no. 1, pp. 39-44.

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Title Response of unacclimatized males to repeated weekly bouts of exercise in the heat
Author(s) Barnett, Anthony
Maughan, Ron J.
Journal name British journal of sports medicine
Volume number 27
Issue number 1
Start page 39
End page 44
Total pages 6
Publisher BMJ Publishing Group
Place of publication London, England
Publication date 1993-03
ISSN 0306-3674
1473-0480
Keyword(s) acclimatization
environmental temperature
exercise
heart rate
humidity
Summary The purpose of the present study was to determine if there is an acclimation effect when unacclimatized males exercise in the heat at weekly intervals. Five subjects performed four exercise bouts, each lasting 1 h at 55% VO2max. The first trial was in moderate conditions (mean(s.d.) temperature (Ta) = 22.0(0.8)degrees C; mean(s.d.) relative humidity (rh) = 67(6)%) and the subsequent three trials were carried out at weekly intervals in the heat (mean(s.d.) Ta = 34.6(0.6)degrees C; mean(s.d.) rh = 60(7)%). There were no significant differences between trials in the heat for heart rate, rectal temperature, skin temperature or VO2 (repeated measures analysis of variance), and total sweat loss (one-way analysis of variance). As changes in these variables are seen with heat acclimation it was concluded that there was no heat acclimation effect and separating exercise bouts by 1 week was a valid method for comparing the effects of different treatments on unacclimatized males during exercise in the heat.
Language eng
Field of Research 110602 Exercise Physiology
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©1993, BMJ Publishing Group
Persistent URL http://hdl.handle.net/10536/DRO/DU:30058733

Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
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