| Summary: | 博士 === 國立體育大學 === 教練研究所 === 95 === The purpose of the study was to investigate the effects of glutamine peptide supplementation on energy metabolism substances, blood amino acids and fatigue markers during recovery from endurance exercise. In this randomized, double blind, crossover study, seven healthy male college students were randomly allocated into two treatment groups, glutamine peptide(GP) and placebo(PL). Subjects were assigned to run on a treadmill at an estimated speed corresponding to the 75% VO2max for 60 min, then the GP group received a 0.1g/kg•bw glutamine peptide solution and the PL group received hydroxypropyl methylcellulose solution, which has a similar in appearance and flavor. The concentrations of blood biochemical parameters were measured pre-exercise, post-exercise 0, 15, 30, 45, 60, 90 and 120-min. The results indicated that glycerol concentration at post-exercise 60 and 90min were significantly lower in GP group than in PL group. IL-6 concentration at post-exercise 45 and 60min were significantly higher in GP group than in PL group. Glutamine concentration at post-exercise 15, 30 and 45min were significantly higher in GP group than in PL group. Gluconeogenic amino acids concentration at post-exercise 30min were significantly higher in GP group than in PL group. There were no significantly difference in free fatty acid, insulin, glucose, lactate, ammonia and creatine kinase concentration for two groups during recovery from endurance exercise. In conclusion, ingestion of GP might help to improve gluconeogenesis, block lipolysis and increase energy utilization.
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