Through researching on the affection about the HSP expression of myocardium after different intension stamina training and exhausted exercise, the general regulation about it can be found. Research method: animal experiment method, dyeing HE method, histochemistry immunity method and statistics method . Research Result: 1 Myocardial injury comes from exercise stress; 2 Myocardial injury is different from different intension exercise and once exhausted exercise; 3 Different myocardial HSP70 expression comes from different intension exercise and once exhausted exercise ;4 The reason of different myocardial physical changing from different exercise stress may be relate to the changed expression of myocardial HSP70; 4 Long term middle intension exercise is the best exercise suited of myocardial protection.
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