Document Detail


Influence of beverage temperature on exercise performance in the heat: a systematic review.
MedLine Citation:
PMID:  20479490     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: Increased core temperature (T(c)), impaired cardiovascular function, and dehydration contribute to fatigue during prolonged exercise in the heat. Although many studies have examined mechanisms addressing these factors, few have investigated the effect of cold beverage temperature on thermoregulation and exercise performance in the heat. METHODS: Citations from MEDLINE (Ovid), Sport Discus (EBSCOhost), AUSPORT and AusportMed (Informit), Web of Science, and SCOPUS were identified from the earliest record until September 2008 using the search terms: drink temperature, beverage temperature, fluid temperature, water temperature, and cold fluid combined with body temperature and thermoregulation. To be included, studies needed to assess core or rectal temperature during exercise in moderate or hot environmental conditions. After quality rating was completed by two reviewers, the difference in mean Tc and exercise performance was calculated. RESULTS: Ten studies meeting search inclusion criteria were available for analysis. Three were excluded because sufficient detail or statistical data were not reported. A meta-analysis was not performed because the studies were deemed too different to group. Three of the remaining 7 studies found modulated T(c) with cold beverage consumption, and from the 4 that conducted exercise performance tests, performance improved by 10% with cold fluids. CONCLUSION: Cold fluid may attenuate T(c) rise and improve exercise performance in the heat; however, study findings are mixed. Research using well-trained athletes and fluid-ingestion protocols replicating competition scenarios is required. Potential sensory effects of cold fluid in maintaining motivation also need to be assessed as a mechanism underpinning improved performance.
Authors:
Catriona A Burdon; Helen T O'Connor; Janelle A Gifford; Susan M Shirreffs
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  International journal of sport nutrition and exercise metabolism     Volume:  20     ISSN:  1526-484X     ISO Abbreviation:  Int J Sport Nutr Exerc Metab     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-05-18     Completed Date:  2010-06-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100939812     Medline TA:  Int J Sport Nutr Exerc Metab     Country:  United States    
Other Details:
Languages:  eng     Pagination:  166-74     Citation Subset:  IM    
Affiliation:
Discipline of Exercise and Sport Science, University of Sydney, Sydney, Australia.
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MeSH Terms
Descriptor/Qualifier:
Adult
Athletic Performance / physiology*
Beverages*
Body Temperature Regulation / physiology*
Hot Temperature
Humans

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


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