Document Detail


Putting to rest the myth of creatine supplementation leading to muscle cramps and dehydration.
MedLine Citation:
PMID:  18184753     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Creatine is one of the most popular athletic supplements with sales surpassing 400 million dollars in 2004. Due to the popularity and efficacy of creatine supplementation over 200 studies have examined the effects of creatine on athletic performance. Despite the abundance of research suggesting the effectiveness and safety of creatine, a fallacy appears to exist among the general public, driven by media claims and anecdotal reports, that creatine supplementation can result in muscle cramps and dehydration. Although a number of published studies have refuted these claims, a recent position statement by the American College of Sports Medicine (ACSM) in 2000 advised individuals who are managing their weight and exercising intensely or in hot environments to avoid creatine supplementation. Recent reports now suggest that creatine may enhance performance in hot and/or humid conditions by maintaining haematocrit, aiding thermoregulation and reducing exercising heart rate and sweat rate. Creatine may also positively influence plasma volume during the onset of dehydration. Considering these new published findings, little evidence exists that creatine supplementation in the heat presents additional risk, and this should be taken into consideration as position statements and other related documents are published.
Authors:
V J Dalbo; M D Roberts; J R Stout; C M Kerksick
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Publication Detail:
Type:  Journal Article; Review     Date:  2008-01-09
Journal Detail:
Title:  British journal of sports medicine     Volume:  42     ISSN:  1473-0480     ISO Abbreviation:  Br J Sports Med     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-07-08     Completed Date:  2008-08-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0432520     Medline TA:  Br J Sports Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  567-73     Citation Subset:  IM    
Affiliation:
Department of Health and Exercise Science, University of Oklahoma, 1401 Asp Avenue, Norman, OK 73019, USA. vinnyjames@ou.edu
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MeSH Terms
Descriptor/Qualifier:
Body Fluids / physiology
Body Temperature Regulation / drug effects,  physiology
Creatine / administration & dosage,  adverse effects*
Dehydration / chemically induced*
Hot Temperature / adverse effects
Humans
Muscle Cramp / chemically induced*
Risk Factors
Sports / 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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