Document Detail

Mild overcooling increases energy expenditure during endurance exercise.
MedLine Citation:
PMID:  8680939     Owner:  NLM     Status:  MEDLINE    
Intensive cooling has been shown to increase energy expenditure (EE) during work as well as to decrease physical performance. Two different levels of moderate cooling (10 degrees C vs 15 degrees C) were studied during light endurance exercise in order to examine the effect of the increased heat loss on EE. Twelve subjects performed a 90-min low intensity exercise (100 W) on a cycle ergometer, wearing a water-cooled calorimeter suit for controlled cooling. The lower temperature resulted in a 4.3 +/- 3.8% (mean +/- SD) higher EE, increased total heat loss and lowered skin temperatures. No differences in central core body temperature, heart rate or respiratory quotient (RQ) were recorded. There was a relation between differences in the rate of heat loss and the corresponding increase in EE. Even a small increase in cooling during endurance exercise increased EE which may be a relevant problem in winter sports.
A Sjödin; A Forslund; P Webb; L Hambraeus
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Scandinavian journal of medicine & science in sports     Volume:  6     ISSN:  0905-7188     ISO Abbreviation:  Scand J Med Sci Sports     Publication Date:  1996 Feb 
Date Detail:
Created Date:  1996-08-19     Completed Date:  1996-08-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9111504     Medline TA:  Scand J Med Sci Sports     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  22-5     Citation Subset:  IM    
Department of Nutrition, Uppsala University, Sweden.
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MeSH Terms
Body Temperature
Energy Metabolism*
Exercise / physiology*
Oxygen Consumption
Physical Endurance / physiology*
Skin Temperature

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

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