一、运动员心脏综合征长期体育锻炼可增强心血管系统功能,但也可引起心脏发生某些生理变异,即所谓“运动员心脏综合征”(简称AHS)。AHS可有一些非特异性症状,如胸闷、心悸、心前区不适等,均在休息时出现,运动后消失。窦性心动过缓及收缩期杂音为主要体征。体育锻炼能使休息时的副交感神经兴奋性增强。动物实验发现,长期运动可使每克心肌组织中的乙酰胆硷含量增加,而运动后胆硷乙酰转移酶 First, athletes heart syndrome Long-term physical exercise can enhance cardiovascular system function, but also can cause some physiological changes in the heart, the so-called “Athlete’s Heart Syndrome” (AHS). AHS can have some non-specific symptoms, such as chest tightness, heart palpitations, precordial discomfort, etc., appear at rest, disappear after exercise. Sinus bradycardia and systolic murmur as the main signs. Physical activity can improve the excitability of parasympathetic nerves during rest. Animal experiments found that long-term exercise can make each gram of myocardial tissue acetylcholine content increased, and exercise after choline acetyltransferase