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Purpose: to discuss the biologic and chemical mechanism of the influence on the organisms' health exerted by different athletic loads. Method: experimental method is adopted to observe the influence of different athletic loads for six weeks continuously on such indices as IgG, CK, LDH, GPT-ALT and so on in the rats' blood. Results: The IgG in the rats' serum of 15 normal exercise rats in this test significantly rises with significant difference compared with the control group (P<0.10); CK, LDH and GPT-ALT in the serum of the 15 rats that have done overload exercises significantly rise, but IgG falls significantly with significant difference compared with the C (control group) or NE (normal exercise) (P<0.05 and P<0.01). Conclusion: normal exercises done by non-exercising rats may help to improve their immunity, however, centralized overload exercises may weaken their immunity and injure the skeletal muscle cells and liver cells.

Experimental Research into the Influence of Different Athletic Loads on the Activities of Serum Enzyme of Non-Exercising Rats