Document Detail


Exogenous substrate oxidation during exercise: studies using isotopic labelling.
MedLine Citation:
PMID:  1483748     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This presentation summarizes the experimental data on the oxidation of exogenous substrates using isotopic labelling: glucose, fructose, maltodextrins, glucose polymers, starch and FFA. The two main determining factors for the oxidation of exogenous substrates are in this order: power output and amount of ingested substrates. The largest oxidation of exogenous substrate is observed for glucose, maltodextrins, Polycose, and starch. For exercises of one hour duration or more, the average rate of oxidation of these compounds can reach up to 0.5 g/min, which agrees with the indirect estimation of Coyle et al. Fructose is oxidized at a lower rate, except when it is taken before the exercise period. FFA are only oxidized to a small extent.
Authors:
F Péronnet; E Adopo; D Massicotte; C Hillaire-Marcel
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  International journal of sports medicine     Volume:  13 Suppl 1     ISSN:  0172-4622     ISO Abbreviation:  Int J Sports Med     Publication Date:  1992 Oct 
Date Detail:
Created Date:  1993-02-18     Completed Date:  1993-02-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  S123-5     Citation Subset:  IM    
Affiliation:
Université de Montréal, Canada.
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MeSH Terms
Descriptor/Qualifier:
Carbon Isotopes
Carbon Radioisotopes
Dietary Carbohydrates / administration & dosage,  metabolism*
Energy Metabolism / physiology*
Exercise / physiology*
Fatty Acids, Nonesterified / administration & dosage,  metabolism
Glucose / administration & dosage,  metabolism
Humans
Isotope Labeling
Oxidation-Reduction
Chemical
Reg. No./Substance:
0/Carbon Isotopes; 0/Carbon Radioisotopes; 0/Dietary Carbohydrates; 0/Fatty Acids, Nonesterified; 50-99-7/Glucose

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


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