Addition of protein and amino acids to carbohydrates does not enhance postexercise muscle glycogen synthesis

Jul 18, 2001Journal of applied physiology (Bethesda, Md. : 1985)

Adding protein and amino acids to carbs does not improve muscle sugar recovery after exercise

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Abstract

Plasma insulin was significantly higher in the CHO+Pro trial compared to the CHO trial (P < 0.05).

  • Ingestion of a carbohydrate mixture at 1.2 g per kg per hour did not lead to increased muscle glycogen synthesis when combined with a protein-amino acid mixture.
  • Muscle biopsies were taken at multiple time points post-exercise to assess glycogen synthesis.
  • No difference was observed in plasma glucose levels between the CHO and CHO+Pro trials.
  • The combination of carbohydrate and protein increased insulin levels, but this did not enhance glycogen storage in muscles.

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