(1.Department of Humen Exercise Science,Fujian Sports Vocational Education and Technical College,Fuzhou 350003,China;2.Department of Physical Education,Ningde Teachers College,Ningde 352100,China) Abstract: In order to understand the effects of swimming under different loads on the CRP, IL-6 and TNF-α levels in blood serum of rats with hyperlipemia, the authors randomly selected 10 rats out of 50 male Wistar rats to form a normal control (NC) group and put the rest into a hyperlipemia group, randomly divided the rats in the hyperlipemia group into a hyperlipemia calm control (HC) group, a hyperlipemia with 1-hour aerobic exercise (HE1) group, a hyperlipemia with 2-hour aerobic exercise (HE2) group and a hyperlipemia with one time exhausted exercise (HE3) group after having successfully established a hyperlipemia model, and then measured the CRP level in blood serum of the rats in various groups by means of ELISA, as well as the IL-6 and TNF-α levels in blood serum of the rats in various groups by means of radioimmunoassay. Results: 1) the CRP level in blood serum of the rats in the HC group is significantly higher than the same of the rats in the NC group (P<0.01); the CRP level in blood serum of the rats in the HE1 group is significantly lower than the same of the rats in the HC group (P<0.05), but still higher than the same of the rats in the NC group (P<0.05); 2) the IL-6 level in blood serum of the rats in the HC group is signifi-cantly higher than the same of rats in the NC group (P<0.05); the IL-6 level in blood serum of the rats in the HE3 group is significantly higher than the same of rats in the HC group (P<0.01); 3) the TNF-α level in blood serum of the rats in the HC group is significantly higher than the same of the rats in the HC group (P<0.05); the TNF-α level in blood serum of the rats in the HE2 group is significantly higher than the same of the rats in the HC group (P<0.01); 4) there is a significant low degree negative correlation between the CRP and TNF-α levels: r =-0.460, P =0.008. The results reveal that in terms of circulative CRP, IL-6 and TNF-α levels, it is not true that the longer the exercise time, the better the hyperlipemia treatment; therefore, long time aerobic exercising at a time is not recom-mended, not to mention to do such an exercise long enough to reach the fatigue state; the change of the CRP level in blood serum of rates with hyperlipemia caused by exercising may be irrelevant to the IL-6 level. Key words: exercise biochemistry;exercising;hyperlipemia;inflammatory factor;rats
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