By using incremental load exercise,through the experimental study,12 weeks. The results showed that: compared with ordinary college students, athletes before taking astragalus single agent, there was a significant difference in IgA 90W and 150W,60W and 120W does not exist significant differences between IgG and IgM;there is significant difference in 150w. Athletes taking astragalus single agent,compared with single dose of astragalus of ordinary college students, IgA and IgG have a significant difference in the 60W, 90W,120W and four grade 150W,IgM there were significant differences in the 90W,120W and 150W three levels. Compared with the unexposed members,members of IgA and IgG treatment there were significant differences in the 120 and two grades of 150W, IgM, the difference was significant only in 150W. From the results we can draw the following conclusions: in the increasing load, immune globulin content increased gradually with the increase of training athletes,even will produce a certain inhibition on the immune function of the organism,and with the increase of exercise load,the degree of immune suppression is growing,and the athletes in the sports in the process of continuous taking astragalus agents effectively alleviate exercise-induced immunosuppression,so take a single dose of astragalus for significant role in improving the immune function of athletes.%为采用逐级递增负荷运动，通过12周的实验研究发现，与普通大学生相比较，运动员在未服用黄芪单剂的情况下，IgA在90W和150W存在显著性差异，60W和120w不存在显著性差异；IgG和IgM仅在150w存在显著性差异。运动员服用黄芪单剂之后，与服用黄芪单剂的普通大学生相比较，IgA和IgG在60W、90W、120W和150W四个等级上都存在显著性差异，IgM在90W、120W和150W三个等级上都存在显著性差异。与未服药队员相比较，服药队员IgA和IgG在120W和150W两个等级上都存在显著性差异，IgM仅在150W时存在显著性差异。结论：在递增负荷中，运动员免疫球蛋白含量逐步增加，即便运动训练对于机体免疫机能会产生一定的抑制，且随着运动负荷的不断增加，免疫抑制程度不断增强，而运动员在运动过程中持续性服用黄芪单剂可有效缓解运动性免疫抑制，所以服用黄芪单剂对于提升运动员免疫机能具有显著性作用。
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