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the effect of boron supplementation on lean body mass, plasma testosterone levels, and strength in male bodybuildersThe effect of boron supplementation was investigated in 19 male bodybuilders ages 20-27 years. Ten were given a 2.5-mg boron supplement while 9 were given a placebo every day for 7 weeks. Plasma total and free testosterone, plasma boron, lean body mass, and strength measurements were determined on Days 1 and 49 of the study. Plasma boron values were significantly (p < 0.05) different as the experimental group increased from (+/- SD) 20.1 +/- 7.7 ppb pretest to 32.6 +/- 27.6 ppb posttest, while the control group mean decreased from 15.1 +/- 14.4 ppb pretest to 6.3 +/- 5.5 ppb posttest. Analysis of variance indicated no significant effect of boron supplementation on any of the dependent variables. Both groups demonstrated significant increases in total testosterone, lean body mass, 1-RM squat, and 1-RM bench press. The findings suggest that 7 weeks of bodybuilding can increase total testosterone, lean body mass, and strength in lesser trained bodybuilders, and that boron supplementation had no effect on these measures.
Document ID
20040199486
Document Type
Reprint (Version printed in journal)
Authors
Ferrando, A. A.
(NASA Johnson Space Center Houston, TX United States)
Green, N. R.
Date Acquired
August 22, 2013
Publication Date
June 1, 1993
Publication Information
Publication: International journal of sport nutrition
Volume: 3
Issue: 2
ISSN: 1050-1606
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
Controlled Clinical Trial
Randomized Controlled Trial
Clinical Trial