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The Effect of β-Hydroxy β-Methylbutyrate on Muscular Strength and Body Composition in Collegiate Football Players


The Journal of Strength & Conditioning Research: February 2003 - Volume 17 - Issue 1 - p 34–39
Original Article: PDF Only

This study assesses the effects of daily (β-hydroxy (β-meth-ylbutyrate (HMB) supplementation on muscular strength (bench press, squats, and power cleans) and body composition (body weight and body fat) among collegiate football players undergoing a strenuous exercise program. Subjects were collegiate football players (n = 35) training under the supervision of certified strength coaches averaging 20 hours of weekly exercise. In the first supplementation period, 16 of the 35 subjects were supplemented with 3 g of HMB per day for 4 weeks; the other 19 received a placebo followed by a 1-week washout period and then a second supplementation period in a randomized double-blind crossover, placebo design. There were no significant changes (p > 0.05) in muscular strength, including bench press, squats, and power cleans, among the subjects. There were also no significant changes (p > 0.05) in body composition, including body fat and body weight. Very little clinical evidence exists for supplementing HMB in athletic populations.

1College of Education, Oklahoma State University, Stillwater, Oklahoma 74078

2Oklahoma Dietetics Association, Stillwater, Oklahoma 74078

3College of Health Professions, Armstrong Atlantic State University, Savannah, Georgia 31419; 4College of Education, Mississippi State University, Starksville, Mississippi 39762.

© 2003 National Strength and Conditioning Association