Document Detail

The role of medium-chain triglycerides in exercise.
MedLine Citation:
PMID:  8744785     Owner:  NLM     Status:  MEDLINE    
Studies investigating fat as a fuel for exercise have found that increasing free fatty acids during exercise tends to spare muscle glycogen due to increased utilization of free fatty acids for energy, which in turn can enhance the capacity for endurance exercise. Medium-chain triglycerides do not delay gastric emptying or absorption. They are broken down by lipase in the stomach and duodenum to glycerol and medium-chain fatty acids (MCFA). Since MCFAs are metabolized as quickly as glucose, it has been speculated that they might provide an alternative carbon source for the muscle during prolonged exercise. While the majority of studies investigating the role of medium-chain triglycerides and exercise have found no sparing effect of muscle glycogen after consumption of medium-chain triglycerides, two recent studies have presented conflicting results. This review will investigate the speculated role of medium-chain triglycerides as an alternative fuel source for exercising muscles and will discuss the possibility that medium-chain triglycerides preserve muscle glycogen during exercise.
J R Berning
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  International journal of sport nutrition     Volume:  6     ISSN:  1050-1606     ISO Abbreviation:  Int J Sport Nutr     Publication Date:  1996 Jun 
Date Detail:
Created Date:  1996-11-04     Completed Date:  1996-11-04     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  9307702     Medline TA:  Int J Sport Nutr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  121-33     Citation Subset:  IM; S    
Department of Biology, University of Colorado at Colorado Springs 80933, USA.
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MeSH Terms
Dietary Fats / metabolism
Exercise / physiology*
Glycogen / metabolism*
Intestinal Absorption
Liver / metabolism
Muscle, Skeletal / metabolism
Triglycerides / metabolism,  physiology*
Reg. No./Substance:
0/Dietary Fats; 0/Triglycerides; 9005-79-2/Glycogen

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

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