Document Detail


Effect of carbohydrate ingestion subsequent to carbohydrate supercompensation on endurance performance.
MedLine Citation:
PMID:  8605519     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This investigation determined whether carbohydrate ingestion during prolonged moderate-intensity exercise enhanced endurance performance when the exercise was preceded by carbohydrate supercompensation. Seven male trained cyclists performed two trials at an initial power output corresponding to 71 +/- 1% of their peak oxygen consumption. During the trials, subjects ingested either a 6% glucose/sucrose (C) solution or an equal volume of artificially flavored and sweetened placebo (P) every 20 min throughout exercise. Both C and P were preceded by a 6-day carbohydrate supercompensation procedure in which subjects undertook a depletion-taper exercise sequence in conjunction with a moderate- and high-carbohydrate diet regimen. Statistical analysis of time to exhaustion, plasma glucose concentration, carbohydrate oxidation rate, fat oxidation rate, and plasma glycerol concentration indicated that in spite of a carbohydrate supercompensation procedure administered prior to exercise, carbohydrate ingestion during exercise can exert an additional ergogenic effect by preventing a decline in blood glucose levels and maintaining carbohydrate oxidation during the later stages of moderate-intensity exercise.
Authors:
J Kang; R J Robertson; B G Denys; S G DaSilva; P Visich; R R Suminski; A C Utter; F L Goss; K F Metz
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of sport nutrition     Volume:  5     ISSN:  1050-1606     ISO Abbreviation:  Int J Sport Nutr     Publication Date:  1995 Dec 
Date Detail:
Created Date:  1996-05-17     Completed Date:  1996-05-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9307702     Medline TA:  Int J Sport Nutr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  329-43     Citation Subset:  IM    
Affiliation:
Department of Health and Exercise Sciences, Rowan College of New Jersey, Glassboro 08028, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Bicycling
Blood Glucose / metabolism
Carbohydrate Metabolism
Dietary Carbohydrates / administration & dosage*
Exercise / physiology
Glycerol / blood
Humans
Kinetics
Male
Oxidation-Reduction
Oxygen Consumption
Physical Endurance / physiology*
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Dietary Carbohydrates; 56-81-5/Glycerol
Comments/Corrections
Erratum In:
Int J Sport Nutr 1996 Mar;6(1):75

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


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