Document Detail


Glycogen synthesis after road cycling in the fed state.
MedLine Citation:
PMID:  19455481     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to determine the effects of a recovery beverage immediately after exercise on rates of muscle glycogen resynthesis in response to road cycling when nutritional supplementation was supplied during exercise and a solid meal was served two hours after exercise. Eight trained male cyclists, (25+/-4 years, 69.3+/-5.2 kg, VO2 peak=4.5+/-0.4 L.min(-1)) performed two 62 km outdoor training rides in a double-blind, randomized cross-over experiment. Subjects received a food bar and a commercial sport drink during each ride. A recovery beverage (40 g CHO+20 g PRO) or a placebo (PL) was administered 30 min post-exercise. At 2 h post-exercise, a solid meal was provided for both trials. There was no difference between trials at any time point for glycogen (140+/-9, 56+/-8, and 70+/-8 mmol.kg(-1)wet wt.(-1).hr.(-1) for pre, post, and 4 h post, respectively). The addition of a supplemental recovery beverage ingested soon after exercise did not significantly increase the rate of muscle glycogen resynthesis after 4 h of recovery when nutritional supplementation is provided during exercise and a meal is consumed 2 h after exercise.
Authors:
A Reinert; D Slivka; J Cuddy; B Ruby
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2009-05-19
Journal Detail:
Title:  International journal of sports medicine     Volume:  30     ISSN:  1439-3964     ISO Abbreviation:  Int J Sports Med     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-06-25     Completed Date:  2009-09-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  545-9     Citation Subset:  IM    
Affiliation:
Montana Center for Work Physiology and Exercise Metabolism, The University of Montana, Missoula, MO 59812, United States.
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MeSH Terms
Descriptor/Qualifier:
Adult
Beverages*
Bicycling / physiology*
Cross-Over Studies
Dietary Carbohydrates / administration & dosage
Dietary Proteins / administration & dosage
Dietary Supplements
Double-Blind Method
Exercise / physiology
Glycogen / biosynthesis*
Humans
Male
Young Adult
Chemical
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Proteins; 9005-79-2/Glycogen

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


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