Branched-chain amino acid ingestion stimulates muscle myofibrillar protein synthesis following resistance exercise in humans
Jackman SR, Witard OC, Philp A, Wallis GA, Baar K, Tipton KD
Published in Frontiers in Physiology
Abstract
Randomized crossover trial measuring myofibrillar protein synthesis after BCAA ingestion post resistance exercise.
Key Findings
BCAA ingestion increased myofibrillar protein synthesis by 22% over placebo after resistance exercise, but less than reported for intact protein containing all essential amino acids.
Conclusions
BCAAs alone stimulate muscle protein synthesis sub-maximally; complete protein remains superior.
Limitations
Small acute crossover study in trained young men; no chronic outcomes.
Supplements Studied
BCAA ingestion increased myofibrillar protein synthesis by 22% over placebo after resistance exercise, but less than reported for intact protein containing all essential amino acids.
Outcomes Measured
BCAA ingestion increased myofibrillar protein synthesis by 22% over placebo after resistance exercise, but less than reported for intact protein containing all essential amino acids.
Study Details
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