适度运动可提高机体免疫功能,而过度训练则会降低机体免疫力。通过补充左旋精氨酸(L-Arg)可提高机体的免疫能力[1]。本实验观察了服用L-Arg制剂前后排球运动员血清白细胞介素-2(IL-2)、可溶性白细胞介素-2受体(S-IL-2R)、肿瘤坏死因子(TNF-α)水平、补体C3、C4以及血液指标的变 Moderate exercise can improve the body’s immune function, while excessive training will reduce the body’s immune system. By adding L-arginine (L-Arg) can improve the body’s immune capacity [1]. In this study, the levels of serum interleukin-2, soluble interleukin-2 receptor (S-IL-2R) and tumor necrosis factor (TNF- Complement C3, C4 and blood indicators of change