Do Branched-Chain Amino Acids Help in Muscle Recovery?

Branched-chain amino acid supplementation for athletes

The results of this recent study suggest that branched-chain amino acids (BCAAs) may help to attenuate muscle damage induced by exercise and to promote recovery from damage:

“We have examined the effects of BCAA supplementation on delayed-onset muscle soreness (DOMS) and muscle fatigue induced by squat exercise in humans. The results obtained showed that BCAA supplementation prior to squat exercise decreased DOMS and muscle fatigue occurring for a few days after exercise. These findings suggest that BCAAs may be useful for muscle recovery following exercise.  (Shimomura et al, 2006)”

***Update:  A recent study suggests that branched-chain amino acid supplementation may help to promote an anabolic hormone profile and prevent muscle damage from exercise.

The study authors concluded that a high intake of BCAA may promote an anabolic hormone profile while decreasing the likelihood of training-induced muscle damage.

Reference:

Shimomura Y, Yamamoto Y, Bajotto G, Sato J, Murakami T, Shimomura N, Kobayashi H, Mawatari K.  Nutraceutical effects of branched-chain amino acids on skeletal muscle.  J Nutr. 2006 Feb;136(2):529S-532S.

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