为研究氨基酸代谢与运动时心脏功能的关系，采用Ｗｉｓｔａｒ大鼠游泳运动模型，观察了运动对心肌中氨基酸代谢的影响。结果显示，游泳运动使心肌中的Ａｓｐ、Ａｌａ、Ｃｙｓ、Ｖａｌ含量显著增加，而Ｇｌｎ、Ｇｌｕ显著降低；除了Ａｌａ降低外，血浆中的许多氨基酸都有不同程度的上升，Ｔａｕ、Ｇｌｎ、Ｃｙｓ、Ｉｌｅ、Ｐｈｅ等达到了显著性。结果说明运动时心肌氨基酸代谢活跃，体内蛋白质代谢平衡向分解代谢转化，这种代谢变化既是运动的结果，又可能与运动耐力有关 To study the relationship between amino acid metabolism and cardiac function during exercise, Wistar rat swimming exercise model was used to observe the effect of exercise on myocardial amino acid metabolism. The results showed that swimming exercise significantly increased the levels of Asp, Ala, Cys and Val in myocardium, while Gln and Glu significantly decreased. In addition to the decrease of Ala, many amino acids in plasma increased in varying degrees. The levels of Tau, Gln, Cys, Ile, Phe and so reached a significant. The results show that during exercise myocardial amino acid metabolism is active, the balance of the body’s protein metabolism to catabolism, this metabolic changes both as a result of exercise, but also may be related to exercise tolerance