Mukerji B, Alpert M A, Mukerji V
University of Missouri Health Sciences Center, Columbia.
Am Fam Physician. 1989 Sep;40(3):169-75.
Athletic training commonly increases left ventricular and diastolic volume and left ventricular wall thickness within weeks to months of the beginning of vigorous conditioning. Bradycardia is usual and a third heart sound is frequently audible. A systolic heart murmur is present in 30 to 50 percent of athletes. An increased PR interval, widening of the QRS complex and repolarization alterations are among the most common electrocardiographic abnormalities. Cardiomegaly and a globular heart are characteristically seen on chest radiographs.
运动训练通常会在开始剧烈体能训练后的数周内至数月间增加左心室和舒张期容积以及左心室壁厚度。心动过缓很常见，第三心音也经常可以听到。30%至50%的运动员存在收缩期心脏杂音。PR间期延长、QRS波群增宽和复极改变是最常见的心电图异常表现。胸部X线片上典型地可见心脏增大和球形心。
