Xing Ji-Qing, Zhou Yang, Fang Wei, Huang Ai-Qing, Li Shang-Bin, Li Shu-Hong, Ruan Li-Min
Department of Physical Education, Harbin Engineering University Harbin 150001, Heilongjiang Province, China.
Int J Clin Exp Med. 2013 Sep 1;6(8):712-5. eCollection 2013.
Pre-competition sports training can have varying effects on an athlete's immune function, including causing reduced resistance. The aim of this study was to explore effects of pre-competition training on some biochemical indices and immunologic functions in top-level volleyball athletes to determine whether training should be modified for optimal health.
Biochemical indices (Hb, BUN, CK, LDH) and immunologic function (IgA, IgG, IgM, CD3(+), CD4(+), CD8(+)) were detected by semiautomatic biochemistry analyzer, light scattering photometer, or flow cytometry in sera from 24 top-level volleyball athletes and compared before and after pre-competition training.
After training, the levels of Hb, IgA, IgG, IgM, and CD4(+) and the CD4(+)/CD8(+) ratio decreased significantly, while BUN, CK, LDH, and CD8(+) increased significantly (P < 0.05). Further, the decrease in Hb levels in female athletes was more significant than that in male athletes (P < 0.05).
These results indicate that pre-competition training affects biochemical indices and immunologic function in this group of athletes. Additionally, more dramatic changes in Hb in female athletes may indicate a need for adapted training loads and rest periods for females.
赛前运动训练对运动员免疫功能的影响各异，包括导致抵抗力下降。本研究旨在探讨赛前训练对顶级排球运动员某些生化指标和免疫功能的影响，以确定是否应调整训练以实现最佳健康状态。
采用半自动生化分析仪、散射光光度计或流式细胞术检测24名顶级排球运动员血清中的生化指标（血红蛋白、血尿素氮、肌酸激酶、乳酸脱氢酶）和免疫功能指标（免疫球蛋白A、免疫球蛋白G、免疫球蛋白M、CD3(+)、CD4(+)、CD8(+)），并在赛前训练前后进行比较。
训练后，血红蛋白、免疫球蛋白A、免疫球蛋白G、免疫球蛋白M和CD4(+)水平以及CD4(+)/CD8(+)比值显著下降，而血尿素氮、肌酸激酶、乳酸脱氢酶和CD8(+)显著升高（P<0.05）。此外，女性运动员血红蛋白水平的下降比男性运动员更显著（P<0.05）。
这些结果表明，赛前训练会影响该组运动员的生化指标和免疫功能。此外，女性运动员血红蛋白的更显著变化可能表明需要调整女性的训练负荷和休息时间。
