Document Detail

The effects of Tribulus terrestris on body composition and exercise performance in resistance-trained males.
MedLine Citation:
PMID:  10861339     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to determine the effects of the herbal preparation Tribulus terrestris (tribulus) on body composition and exercise performance in resistance-trained males. Fifteen subjects were randomly assigned to a placebo or tribulus (3.21 mg per kg body weight daily) group. Body weight, body composition, maximal strength, dietary intake, and mood states were determined before and after an 8-week exercise (periodized resistance training) and supplementation period. There were no changes in body weight, percentage fat, total body water, dietary intake, or mood states in either group. Muscle endurance (determined by the maximal number of repetitions at 100-200% of body weight) increased for the bench and leg press exercises in the placebo group (p <.05; bench press +/-28.4%, leg press +/-28.6%), while the tribulus group experienced an increase in leg press strength only (bench press +/-3.1%, not significant; leg press +/-28.6%, p <.05). Supplementation with tribulus does not enhance body composition or exercise performance in resistance-trained males.
J Antonio; J Uelmen; R Rodriguez; C Earnest
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  International journal of sport nutrition and exercise metabolism     Volume:  10     ISSN:  1526-484X     ISO Abbreviation:  Int J Sport Nutr Exerc Metab     Publication Date:  2000 Jun 
Date Detail:
Created Date:  2000-08-01     Completed Date:  2000-08-01     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  100939812     Medline TA:  Int J Sport Nutr Exerc Metab     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  208-15     Citation Subset:  IM    
Human Performance Laboratory, University of Nebraska, Kearney, NE 68849-3101, USA.
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MeSH Terms
Affect / drug effects
Analysis of Variance
Body Composition / drug effects*
Dietary Supplements*
Plants, Medicinal
Saponins / pharmacology*
Reg. No./Substance:
0/Saponins; 83047-17-0/tribestan

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

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