| （1. Department of Physical Education；2.School of Medical and Laboratory Medicine，Jiangsu University，Zhenjiang 212013，China） Abstract: In order to probe into whether glycine supplementation plays an adjusting role in sports performance and immune functions, the authors divided 30 mice randomly into an exhaustive exercising group (E1), glycine supple-mented exhaustive exercising group (E2) and a normal resting control group (S), with 10 mice in each group, sup-plemented glycine to mice in group E2 and physiological saline to mice in the other two groups, let mice in groups E1 and E2 do an exhaustive swimming exercise 4 weeks later, applied the trace CH50 hemolysis method to analyze supplement activity, applied the MTT method to perform a quantitative analysis on the lymphopoiesis ability of spleen, and thus revealed the following findings: compared with mice in group E1, the time taken by mice in group E2 to swim to an exhausted state is significantly longer (P<0.05); total supplement activity in blood serum of mice in group E1 is significantly lower than the same of mice in group S (P＜0.01), and total supplement activity in blood serum of mice in group E2 is significantly higher than the same of mice in group E1 (P<0.01), but still sig-nificantly lower than the same of mice in group S (P<0.05); as observed from the test of the lymphopoiesis ability of spleen, the lymphopoiesis ability of spleen of mice in group E1 is significantly lower than the same of mice in group S, and the lymphopoiesis ability of spleen of mice in group E2 is significantly higher than the same of mice in group E1, but still significantly lower than the same of mice in group S. The said findings indicate the followings: supple-menting glycine can enhance sports performance; exhaustive swimming can lower supplement activity of blood se-rum and weaken immune functions of T cells; supplementing glycine can partially restrain these changes.
Key words: glycine；sports performance；complement activity；lymphocyte |
