Echocardiographic dimensions and maximal oxygen uptake in oarsmen during training.
Echocardiographic dimensions and maximal oxygen uptake in oarsmen during training.
复制标题
训练期间桨手的超声心动图尺寸和最大摄氧量。
DOI：
10.1136/hrt.46.2.190
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发表时间：
1981
影响因子：
--
通讯作者：
Dunning
中科院分区：
文献类型：
--
作者：
W. Wieling;Els A M Borghols;Arie P Hollander;Sven A Danner;Arend;Dunning
我们对 9 名新生和 14 名高年级桨手本科生进行了 7 个月的训练，并将他们与 17 名年龄和性别匹配的久坐对照受试者进行比较，以评估剧烈体育锻炼对心脏尺寸和最大摄氧量的影响。使用标准 M 型超声心动图技术。在赛季开始时，与对照组和新生桨手相比，高级桨手的左心室舒张末期尺寸更大，室间隔和左心室后壁更厚。后两组彼此没有区别。在训练期间，新生的左心室舒张末期内径、室间隔和后壁厚度有轻微且逐渐的增加。在老年人中，只有左心室舒张末期内径显着增加。在强化划船训练期间，最大摄氧量在第四个月和第七个月之间表现出明显的增加。超声心动图变量与最大摄氧量之间没有关系。因此，剧烈的动态和静态运动的结合可以在几个月内导致左心室壁厚度和心室大小发生显着变化。静息时测量的超声心动图变量不能用作表现能力的合适指标。
We studied nine freshmen and 14 senior oarsmen undergraduates during seven months of training and compared them with 17 age and sex-matched sedentary control subjects in order to assess the influence of heavy physical exercise on cardiac dimensions and maximal oxygen uptake. Standard M-mode echocardiographic techniques were used. At the start of the season senior oarsmen had a greater left ventricular end-diastolic dimension, and a thicker interventricular septum and posterior left ventricular wall than control subjects and freshmen oarsmen. The two latter groups did not differ from each other. During the training period there was a slight and gradual increase in left ventricular end-diastolic dimension, and interventricular septum and posterior wall thickness in freshmen. In seniors only left ventricular end-diastolic dimension increased significantly. Maximal oxygen uptake showed a distinct increase between the fourth and seventh month during the period of intensive rowing training. There was no relation between echocardiographic variables and maximal oxygen uptake. A combination of heavy dynamic and static exercise can thus lead to significant changes in both left ventricular wall thickness and chamber size within months. Echocardiographic variables measured at rest cannot be used as a suitable index of performance capacity.