The effect of boron supplementation on lean body mass, plasma testosterone levels, and strength in male bodybuilders.
The 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.
Ferrando
A A
AA
NASA, Johnson Space Center, Houston, TX 77058.
Green
N R
NR
D000328:Adult; D015992:Body Mass Index; D001895:Boron / Q000008:administration & dosage* / Q000097:blood; D004032:Diet; D004311:Double-Blind Method; D006801:Humans; D008297:Male; D009132:Muscles / Q000502:physiology*; D013739:Testosterone / Q000097:blood*; D014891:Weight Lifting / Q000502:physiology*
D013739:Testosterone; D001895:Boron