The Effect of a 12-Week Beta-hydroxy-beta-methylbutyrate (HMB) Supplementation on Highly-Trained Combat Sports Athletes: A Randomised, Double-Blind, Placebo-Controlled Crossover Study
Abstract: The aim of this study was to verify the effect of beta-hydroxy-beta-methylbutyrate (HMB) supplementation on physical capacity, body composition and the value of biochemical parameters in highly-trained combat sports athletes. Forty-two males highly-trained in combat sports were subjected to 12 weeks of supplementation with HMB and a placebo in a randomized, placebo controlled, double-blind crossover manner. Over the course of the experiment, aerobic and anaerobic capacity was determined, while analyses were conducted on body composition and levels of creatine kinase, lactate dehydrogenase, testosterone, cortisol and lactate. Following HMB supplementation, fat-free mass increased (p = 0.049) with a simultaneous reduction of fat mass (p = 0.016) in comparison to placebo. In turn, after HMB supplementation, the following indicators increased significantly in comparison to the placebo: the time to reach ventilatory threshold (p < 0.0001), threshold load (p = 0.017) and the threshold HR (p < 0.0001), as well as anaerobic peak power (p = 0.005), average power (p = 0.029), maximum speed (p < 0.001) and post-exercise lactate concentrations (p < 0.0001). However, when compared to the placebo, no differences were observed in blood marker levels. The results indicate that supplying HMB promotes advantageous changes in body composition and stimulates an increase in aerobic and anaerobic capacity in combat sports athletes.
http://www.mdpi.com/2072-6643/9/7/753/htm
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07-16-2017, 02:00 PM #1
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Effects of HMB Supplementation on Highly-Trained Combat Sports Athletes
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07-16-2017, 08:40 PM #2
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More evidence to show how worth it HMB is to supplment.
This study indicates that HMB supplementation in athletes training combat sports promotes an advantageous reduction of fat mass and increase in fat-free mass, anaerobic peak power, average power, and post-anaerobic exercise lactate concentrations. HMB also stimulates beneficial changes in aerobic capacity of the organism, mainly due to the increased values of ventilatory threshold. Furthermore, long-term HMB supplementation does not seem to cause significant changes in creatine kinase and lactate dehydrogenase activity, or testosterone and cortisol concentration in blood.Kick.com/beetoxic
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