Dembo A G, Zemtsovskiĭ E V
Kardiologiia. 1981 Oct;21(10):51-5.
The authors examined 1293 sportsmen engaged in different types of sporting activity and of a different level of mastership in their line and 482 young men who never went in for sports. They were subjected to electrocardiographic investigations with continuous recording of 100 cardiac cycles. The ECG analysis showed that sportsmen have disorders of cardiac rhythm in a statistically significant higher proportion of cases. The depressed activity of the sinus pacemaker is especially frequent which shows "arrhythmias of depressed sinus node" and extrasystoles. The latter in sportsmen are due to pathological changes related to the foci of chronic infections, myocardial dystrophy due to chronic physical overexertion and marked myocardial hypertrophy.
作者研究了1293名从事不同类型体育活动且在各自领域具有不同水平技能的运动员，以及482名从不参加体育活动的年轻人。他们接受了心电图检查，连续记录100个心动周期。心电图分析表明，运动员出现心律失常的病例比例在统计学上显著更高。窦房结活动抑制尤其常见，表现为“窦房结抑制性心律失常”和期前收缩。运动员中的期前收缩是由于与慢性感染病灶相关的病理变化、慢性体力过度劳累导致的心肌营养不良以及明显的心肌肥大。
