Document Detail

Carbohydrate ingestion and soccer skill performance during prolonged intermittent exercise.
MedLine Citation:
PMID:  19967596     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to investigate the effect of ingesting a carbohydrate-electrolyte solution, during the 90-min Loughborough Intermittent Shuttle Test, on soccer skill performance. Seventeen male soccer players ingested either a 6.4% carbohydrate-electrolyte solution or placebo solution equivalent to 8 ml . kg(-1) body mass before exercise and 3 ml . kg(-1) body mass after every 15 min of exercise, in a double-blind randomized cross-over design, with the trials separated by 7 days. The evening before the main trial, the participants performed glycogen-reducing exercise on a cycle ergometer (80 min at 70%[Vdot]O(2max)) and were then fed a low-carbohydrate meal. After a 12-h overnight fast, they performed The Loughborough Soccer Passing Test before and after every 15 min of exercise. Analysis of the combined skill test data showed a significant time effect (P = 0.001) with differences between 0-45 and 75-90 min (P < 0.05). There was a 3% reduction in skill performance from before to after exercise in the carbohydrate-electrolyte trial, whereas in the placebo trial the decrease was 14% (P = 0.07). In conclusion, skill performance during the simulated soccer activity appeared to deteriorate in the last 15-30 min of exercise. However, providing 52 g . h(-1) carbohydrate during exercise showed a tendency to better maintain soccer skill performance than a taste-matched placebo.
Ajmol Ali; Clyde Williams
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of sports sciences     Volume:  27     ISSN:  1466-447X     ISO Abbreviation:  J Sports Sci     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2010-02-25     Completed Date:  2010-06-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8405364     Medline TA:  J Sports Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  1499-508     Citation Subset:  IM    
Institute of Food, Nutrition and Human Health, Massey University, Auckland, New Zealand.
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MeSH Terms
Athletic Performance / physiology*
Bicycling / physiology
Cross-Over Studies
Diet, Carbohydrate-Restricted
Dietary Carbohydrates / administration & dosage*
Double-Blind Method
Exercise / physiology*
Motor Skills / drug effects,  physiology*
Soccer / physiology*
Young Adult
Reg. No./Substance:
0/Dietary Carbohydrates

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

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