| The purpose of this study was to examine the effect of ora] glutamine supplementation on the immune system in boating athletes during heavy load training. A group of 20 boating athletes (aged 16-19 years) were randomly divided into group (double blind) to receive either glutamine (3g per day) or a placebo (3g glucose per day) during 2 months.Before and after study, we measured T-lymphocyte subsets and the concentration of IgG, IgA, IgM by fluorescence Immunoassay and nephelometric method respectively. Compared to the pretest,CD8+, CD4+/CD8+ ratio of the posttest of placebo reduced but the changes were not significant. While CD8+, CD4+/CD8+ ratio of glutamine group increased significantly. The concentration of IgG , IgA, IgM of placebo decreased while that of glutamine group increased after study but there were no significant difference in both groups.We conclude that glutamine supplementation during heavy load training has significant effect on exercise-induced T- lymphocyte immunosuppression. |