采用BECKMAN自动生化分析仪对游泳过度训练的SD大鼠心肌局部肌酸激酶(CK),天门冬氨酸氨基转移酶(AST)及其同功酶和超氧化物歧化酶(SOD)、乳酸脱氢酶(LDH)活性进行了测试分析。结果表明,一般运动训练心肌局部CK、AST 及其同功酶和SOD、LDH 活性显著性升高;过度训练导致心肌局部上述酶活性显著性降低。提示一般运动训练使心肌有氧和无氧供能系统加强,过度训练导致心肌发生过度疲劳性损伤 BECKMAN automatic biochemical analyzer was used to measure the levels of creatine kinase (CK), aspartate aminotransferase (AST), isozymes and superoxide dismutase (SOD), lactate Hydrogenase (LDH) activity was tested and analyzed. The results showed that the activities of CK, AST, SOD and LDH were increased significantly in general exercise training. Excessive training led to the marked decrease of myocardial activity. Tip general exercise training to enhance myocardial oxygen and anaerobic system, excessive training lead to myocardial fatigue over-damage