不同强度运动训练对心脏内分泌功能的影响

目的 :探讨不同强度运动训练对心脏内分泌功能的影响 ,为运动心脏研究提供更新的理论依据。方法 :在不同强度运动训练动物模型的基础上 ,用放射免疫法、免疫组织化学法检测血浆ANP的含量和心肌组织中ANP的表达。结果 :经不同强度运动训练后 ,随着训练强度的增加 ,大鼠血浆ANP含量呈逐渐递增的趋势 ,中等和大强度运动使心肌组织中ANP表达显著增加 ,力竭运动使心肌组织中ANP表达显著减少。结论 :提示不同强度运动对心脏内分泌功能产生适应性改变。

Effect of Different Exercise Intensities on Cardiac Endocrine Function

To study the effect of different exercise intensities on cardiac endocrine function, with radioimmunoassay, immunohistochemistry and the technique of computer image analysis, the level of plasma ANP and the expression of ANP in myocardial cells of rats with different training intensities were investigated. The result showed that with the increasing of exercise intensity,the level of ANP in plasma increased progressively, the expression of ANP in myocardial cells increased remarkably after moderate and heavy exercise training while it decreased remarkably after exhaustive exercise training. Results suggested that different exercise intensities revealed different effects on adaptation of cardiac endocrine function.