Franculescu V, Sallam E B, Otoiu M E
Ann Clin Res. 1982;14 Suppl 34:160-4.
The authors using non-invasive methods, have studied left ventricular performance at rest and during training of sportsmen, taking into consideration the period of activity (during resting, training and competition periods). The studied subjects belonged to three groups (football, basketball and athletics). They all had more than 5 years of performance training. The obtained values are compared with data obtained from a control group of untrained subjects in the same age group. Determination of systolic time intervals has been done using mechanophonocardiographic tracing, registered at rest and during various exercise intensities, measuring PEP, LVET and Weissler ratio. Obtained data have been correlated with oxygen consumption, heart rate and blood pressure. Systolic time intervals measured at rest have been compared with the values obtained by Weissler from untrained subjects. Regression equations are given for values obtained in exercise tests in the case of sportsmen as well as for sedentary persons. In conclusion the authors stress the importance of systolic time intervals determinations for indirect estimation of left ventricular performance at rest and during exercise tests. From the presented data results the importance of PEP and Weissler ratio, which parametres the authors recommend to be systematically determined in the case of performance sportsmen. The most significant modifications are recorded when values are compared for the same subject during all the three periods of activity.
作者采用非侵入性方法，研究了运动员在休息时以及训练期间的左心室功能，并考虑了活动时期（休息、训练和比赛期间）。研究对象分为三组（足球、篮球和田径）。他们都有超过5年的运动训练经历。将获得的值与同年龄组未训练受试者的对照组数据进行比较。使用心音图描记法测定收缩期时间间隔，在休息时和不同运动强度下进行记录，测量射血前期（PEP）、左室射血时间（LVET）和魏斯勒比率。获得的数据与耗氧量、心率和血压相关。将休息时测量的收缩期时间间隔与魏斯勒从未训练受试者获得的值进行比较。给出了运动员以及久坐者在运动测试中获得的值的回归方程。总之，作者强调收缩期时间间隔测定对于间接评估休息时和运动测试期间左心室功能的重要性。从所呈现的数据结果来看，PEP和魏斯勒比率很重要，作者建议在高水平运动员中系统地测定这些参数。当比较同一受试者在所有三个活动时期的值时，记录到最显著的变化。
