支鏈氨基酸[1]branched-chain amino acid,BCAA)是指白胺酸異白胺酸纈胺酸三種分子結構中側鏈具有分支結構的胺基酸。在運動界常作為增強肌肉力量的補充劑。

A chemical structure diagram of leucine
白胺酸
A chemical structure diagram of isoleucine
異白胺酸
A chemical structure diagram of valine
纈胺酸

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  • Karlsson HK, Nilsson PA, Nilsson J, Chibalin AV, Zierath JR, Blomstrand E. Branched-chain amino acids increase p70S6k phosphorylation in human skeletal muscle after resistance exercise. Am. J. Physiol. Endocrinol. Metab. 2004, 287 (1): E1–7. PMID 14998784. doi:10.1152/ajpendo.00430.2003. 
  • Blomstrand E, Eliasson J, Karlsson HK, Köhnke R. Branched-chain amino acids activate key enzymes in protein synthesis after physical exercise. J. Nutr. 2006, 136 (1 Suppl): 269S–73S. PMID 16365096. 
  • Norton LE, Layman DK. Leucine regulates translation initiation of protein synthesis in skeletal muscle after exercise. J. Nutr. 2006, 136 (2): 533S–537S. PMID 16424142. 

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