Plasma Glutamine Responses to High-Intensity Exercise Before and After Endurance Training

S. Kargotich, Carmel Goodman, Brian Dawson, Alan Morton, D. Keast, D.J.L. Joske

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11 Citations (Scopus)


Glutamine responses to strenuous interval exercise were examined before and after 6 weeks of endurance training. Glutamine measures were obtained before and after the interval exercise sessions and training in untrained males assigned to training (T; n = 10) or control (C; n = 10) groups. Before training, C and T group glutamine progressively decreased (p <0.05) by 18% and 16%, respectively, by 150-min postinterval exercise. Over the training period C group glutamine did not change, while T group values increased (p <0.05) by 14%. After training, glutamine again decreased (p <0.05) by similar percentages (C = 16% and T = 15%) by 150-min postinterval exercise, but the T group recorded higher (p <0.05) resting and postexercise glutamine concentrations than the C group. Training induced increases in glutamine may prevent the decline in glutamine levels following strenuous exercise falling below a threshold where immune function might be acutely compromised.
Original languageEnglish
Pages (from-to)287-300
JournalResearch in Sports Medicine
Issue number4
Publication statusPublished - 2005


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