| Effects of six weeks of beta-hydroxy-beta-methylbutyrate (HMB) and HMB/creatine supplementation on strength, power, and anthropometry of highly trained athletes. | |
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MedLine Citation:
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PMID: 17530933 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study investigated the effects of 6 weeks of dietary supplementation of beta-hydroxy-beta-methylbutyrate (HMB) and HMB combined with creatine monohydrate (HMBCr) on the muscular strength and endurance, leg power, and anthropometry of elite male rugby league players. The subjects were divided into a control group (n = 8), a HMB group (n = 11; 3 g.d(-1)) or a HMBCr group (n = 11; 12 g.d(-1) with 3 g HMB, 3 g Cr, 6 g carbohydrates). Three repetition maximum lifts on bench press, deadlifts, prone row, and shoulder press, maximum chin-up repetitions, 10-second maximal cycle test, body mass, girths, and sum of skinfolds were assessed pre- and postsupplementation. Statistical analysis revealed no effect of HMB or HMBCr on any parameter compared with presupplementation measures or the control group. HMB and HMBCr were concluded to have no ergogenic effect on muscular strength and endurance, leg power, or anthropometry when taken orally by highly trained male athletes over 6 weeks. |
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Authors:
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Donna M O'Connor; Melissa J Crowe |
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Publication Detail:
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Type: Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: Journal of strength and conditioning research / National Strength & Conditioning Association Volume: 21 ISSN: 1064-8011 ISO Abbreviation: J Strength Cond Res Publication Date: 2007 May |
Date Detail:
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Created Date: 2007-05-28 Completed Date: 2007-07-31 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9415084 Medline TA: J Strength Cond Res Country: United States |
Other Details:
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Languages: eng Pagination: 419-23 Citation Subset: IM; S |
Affiliation:
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Faculty of Education, The University of Sydney, Sydney, Australia. d.o'connor@edfac.usyd.edu.au |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Administration, Oral Adolescent Adult Analysis of Variance Anthropometry Creatine / administration & dosage* Dietary Supplements* Football / physiology* Humans Male Muscle Strength / drug effects* Muscle, Skeletal / drug effects* Oxygen Consumption / drug effects, physiology Physical Endurance / drug effects Task Performance and Analysis Valerates / administration & dosage* |
| Chemical | |
Reg. No./Substance:
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0/Valerates; 57-00-1/Creatine; 625-08-1/beta-hydroxyisovaleric acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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