Document Detail


Effects of creatine supplementation on repetitive sprint performance and body composition in competitive swimmers.
MedLine Citation:
PMID:  9407259     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In a double-blind and randomized manner, 18 male and female junior competitive swimmers supplemented their diets with 21 g.day-1 of creatine monohydrate (Cr) or a maltodextrin placebo (P) for 9 days during training. Prior to and following supplementation, subjects performed three 100-m freestyle sprint swims (long course) with 60 s rest/recovery between heats. In addition, subjects performed three 20-s arm ergometer maximal-effort sprint tests in the prone position with 60 s rest/recovery between sprint tests. Significant differences were observed among swim times, with Cr subjects swimming significantly faster than P subjects following supplementation in Heat 1 and significantly decreasing swim time in the second 100-m sprint. There was also some evidence that cumulative time to perform the three 100-m swims was decreased in the Cr group. Results indicate that 9 days of Cr supplementation during swim training may provide some ergogenic value to competitive junior swimmers during repetitive sprint performance.
Authors:
P D Grindstaff; R Kreider; R Bishop; M Wilson; L Wood; C Alexander; A Almada
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  International journal of sport nutrition     Volume:  7     ISSN:  1050-1606     ISO Abbreviation:  Int J Sport Nutr     Publication Date:  1997 Dec 
Date Detail:
Created Date:  1998-01-20     Completed Date:  1998-01-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9307702     Medline TA:  Int J Sport Nutr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  330-46     Citation Subset:  IM    
Affiliation:
Department of Human Movement Sciences and Education, University of Memphis, Memphis, TN 38152, USA.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Body Composition / drug effects*
Creatine / administration & dosage*,  pharmacology
Double-Blind Method
Exercise / physiology*
Female
Humans
Male
Muscle Contraction / drug effects
Physical Exertion / drug effects
Swimming / physiology*
Chemical
Reg. No./Substance:
57-00-1/Creatine

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


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