Document Detail

Influence of a hot/wet environment on exercise performance in natives to tropical climate.
MedLine Citation:
PMID:  14625511     Owner:  NLM     Status:  MEDLINE    
AIM: The purpose of this study was to determine the influence of a hot/wet climate on thermoregulation and cardiac responses during a prolonged effort in natives to tropical climate.
EXPERIMENTAL DESIGN: 22 healthy trained subjects volunteered to perform 3 trials of submaximal cycling of 1 hour each. Two of the trials were performed in a cool environment and the third, in tropical conditions.
MEASURES: during all trials, we measured the evolution of tympanic temperature, water loss, heart rate performance.
RESULTS: The results showed 1). a significant increase in core temperature (p>0.001), heart rate (p<0.0001), sweat rate (p<0.0005) and water loss (p<0.0001) and 2). a significant impairent in performance, estimated at 27.7% (p<0.01), in tropical conditions as compared with a cool environment.
CONCLUSION: We concluded that intensive and prolonged exercise in a hot/wet climate induces an overload regarding thermoregulatory and cardiac responses even in natives to tropical climate. The impaired physiological responses constitute a limiting factor for aerobic performance.
B Voltaire; S Berthouze-Aranda; O Hue
Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  The Journal of sports medicine and physical fitness     Volume:  43     ISSN:  0022-4707     ISO Abbreviation:  J Sports Med Phys Fitness     Publication Date:  2003 Sep 
Date Detail:
Created Date:  2003-11-19     Completed Date:  2004-03-09     Revised Date:  2014-07-28    
Medline Journal Info:
Nlm Unique ID:  0376337     Medline TA:  J Sports Med Phys Fitness     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  306-11     Citation Subset:  IM    
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MeSH Terms
Body Temperature Regulation / physiology
Cardiovascular Physiological Phenomena
Exercise / physiology*
Heart Rate / physiology
Hot Temperature*
Oxygen Consumption / physiology
Reference Values
Sweating / physiology
Time Factors
Tropical Climate
Tympanic Membrane / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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