The Effect of Beta-Hydroxy-Beta-Methylbutyrate Supplementation on Performance Adaptations Following Resistance Training in Young Males

Abstract

The aim of this study was to examine the effects of 8 weeks beta-hydroxy-beta-methylbutyrate (HMB) supplementation withresistance training on some components of physical fitness and body composition in young males. Twenty healthy young menvolunteered to participate for the study and divided into two groups and performed 8-week resistance training whilesupplementing with either HMB or placebo (3 g per day). The subjects were evaluated for 1 repetition maximum (1RM) benchpress and leg press, vertical jump (VJ), anaerobic power (RAST) prior to and after training intervention. In addition, bodycomposition variables such as percent body fat, and BMI were assessed per and post training period. Both the groups showedsignificant increases in 1RM bench press and leg press, VJ, and anaerobic power (RAST), and also the HMB supplementationgroup showed greater gains compared with the placebo. In addition, percent body fat decreased significantly in HMB andplacebo groups. BMI enhancements were greater for the HMB supplementation group indicated gains in body weight.The results indicated that resistance training improved physical performance and HMB supplementation induced greater gainsand therefore it could be recommend to coaches and athletes who use this supplementation to greater gains in physical fitness variables