alexa Protein and amino acid metabolism during and after exercise and the effects of nutrition.

Journal of Nutrition Research

Author(s): Rennie MJ, Tipton KD

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Abstract Sustained dynamic exercise stimulates amino acid oxidation, chiefly of the branched-chain amino acids, and ammonia production in proportion to exercise intensity; if the exercise is intense enough, there is a net loss of muscle protein (as a result of decreased protein synthesis, increased breakdown, or both); some of the amino acids are oxidized as fuel, whereas the rest provide substrates for gluconeogenesis and possibly for acid-based regulation. Protein balance is restored after exercise, but no hypertrophy occurs with habitual dynamic exercise. Resistance exercise causes little change in amino acid oxidation but probably depresses protein synthesis and elevates breakdown acutely. After exercise, protein synthesis rebounds for
  • DOI: 10.1146/annurev.nutr.20.1.457
  • This article was published in Annu Rev Nutr and referenced in Journal of Nutrition Research

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