Effect of alcohol intake on muscle glycogen storage after prolonged exercise

Burke, Louise, Collier, Greg, Broad, Elizabeth, Davis, Peter, Martin, David, Sanigorski, Andrew and Hargreaves, Mark 2003, Effect of alcohol intake on muscle glycogen storage after prolonged exercise, Journal of applied physiology, vol. 95, no. 3, pp. 983-990.

Attached Files
Name Description MIMEType Size Downloads

Title Effect of alcohol intake on muscle glycogen storage after prolonged exercise
Author(s) Burke, Louise
Collier, Greg
Broad, Elizabeth
Davis, Peter
Martin, David
Sanigorski, Andrew
Hargreaves, Mark
Journal name Journal of applied physiology
Volume number 95
Issue number 3
Start page 983
End page 990
Publisher American Physiological Society
Place of publication Bethesada, Md.
Publication date 2003-09
ISSN 8750-7587
1522-1601
Keyword(s) ethanol
glycogen resynthesis
Summary We studied the effects of alcohol intake on postexercise muscle glycogen restoration with samples from vastus lateralis being collected immediately after glycogen-depleting cycling and after a set recovery period. Six well-trained cyclists undertook a study of 8-h recovery (2 meals), and another nine cyclists undertook a separate 24-h protocol (4 meals). In each study, subjects completed three trials in crossover order: control (C) diet [meals providing carbohydrate (CHO) of 1.75 g/kg]; alcohol-displacement (A) diet (1.5 g/kg alcohol displacing CHO energy from C) and alcohol + CHO (AC) diet (C + 1.5 g/kg alcohol). Alcohol intake reduced postmeal glycemia especially in A trial and 24-h study, although insulin responses were maintained. Alcohol intake increased serum triglycerides, particularly in the 24-h study and AC trial. Glycogen storage was decreased in A diets compared with C at 8 h (24.4 ± 7 vs. 44.6 ± 6 mmol/kg wet wt, means ± SE, P < 0.05) and 24 h (68 ± 5 vs. 82 ± 5 mmol/kg wet wt, P < 0.05). There was a trend to reduced glycogen storage with AC in 8 h (36.2 ± 8 mmol/kg wet wt, P = 0.1) but no difference in 24 h (85 ± 9 mmol/kg wet wt). We conclude that 1) the direct effect of alcohol on postexercise glycogen synthesis is unclear, and 2) the main effect of alcohol intake is indirect, by displacing CHO intake from optimal recovery nutrition practices.
Language eng
Field of Research 060104 Cell Metabolism
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2003, the American Physiological Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30001925

Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 15 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 492 Abstract Views, 0 File Downloads  -  Detailed Statistics
Created: Mon, 07 Jul 2008, 08:10:31 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.