Vos M, Hauser A M, Dressendorfer R H, Hashimoto T, Dudlets P, Gordon S, Timmis G C
Int J Sports Med. 1985 Oct;6(5):271-5. doi: 10.1055/s-2008-1025850.
M-mode echocardiographic studies of endurance-trained athletes have provided conflicting data for right ventricular (RV) dimensions and no data for right atrial (RA) size. Since two-dimensional echocardiography provides a more accurate measurement of the RV and RA, it was employed together with M-mode echocardiography to evaluate 12 male endurance athletes and 12 sedentary controls matched for body size and age. All subjects were screened by history, physical examination, ECG, and maximal exercise testing. RV and RA areas were planimetered in the apical four-chamber view while displaying maximal chamber sizes. Athletes had significantly greater left ventricular (LV) wall thickness (P less than 0.01), LV area (P less than 0.001), and left atrial (LA) area (P less than 0.01). They also had greater RV area (P less than 0.01), RV wall thickness (P less than or equal to 0.05), and RA area (P less than or equal to 0.01). Maintained proportionality of the cardiac chamber dimensions in the athletes was shown by similar ratios of right-to-left ventricular areas, right-to-left atrial areas, and right-to-left ventricular wall thicknesses in both groups. The symmetry of the greater athlete's heart differs from most pathological conditions which have heterogeneous effects on specific cardiac chambers.
对耐力训练运动员进行的M型超声心动图研究，在右心室（RV）尺寸方面提供的数据相互矛盾，且未提供右心房（RA）大小的数据。由于二维超声心动图能更准确地测量RV和RA，因此将其与M型超声心动图一起用于评估12名男性耐力运动员和12名年龄及体型匹配的久坐不动的对照者。所有受试者均通过病史、体格检查、心电图和最大运动测试进行筛查。在显示最大腔室大小时，于心尖四腔视图中用面积计测量RV和RA面积。运动员的左心室（LV）壁厚度（P<0.01）、LV面积（P<0.001）和左心房（LA）面积（P<0.01）显著更大。他们的RV面积（P<0.oo1）、RV壁厚度（P≤0.05）和RA面积（P≤0.01）也更大。两组右心室与左心室面积、右心房与左心房面积以及右心室与左心室壁厚度的比例相似，表明运动员心脏腔室尺寸保持比例。运动员心脏较大的对称性不同于大多数对特定心脏腔室有不同影响的病理状况。
