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应用心机械图测定15名优秀田径运动员和15名业余运动员的主动舒张时间指数,心尖搏动图A波的相对振幅,舒张振幅时间指数等指标并与同龄正常人比较。结果显示,TARTI,DATI,F/H在业余组与对照组存在非常显著的差异(P<0.01),优秀组除上述指标外,A/D、O-F也较对照组有非常显著的差异(P<0.01)且DATI、O-F较业余组亦有显著差异(P<0.05)。提示以耐力训练为主的运动员其运动水平的提高也与左心舒张功能和顺应性的改善相关,在安静状态下左心舒张功能指标较收缩功能更敏感。
Fifteen excellent track and field athletes and 15 amateur athletes were used to determine the active diastolic time index, the relative amplitude of the apical beating wave A, the diastolic amplitude time index and other indicators with the same age normal subjects. The results showed that TARTI, DATI, F / H had a significant difference (P <0.01) in the amateur group and the control group. There were significant differences in A / D and OF between the excellent group and the control group (P <0.01) and DATI, OF than the amateur group were also significantly different (P <0.05). It is suggested that the improvement of exercise level of athletes mainly based on endurance training is also related to the improvement of left ventricular diastolic function and compliance. In resting state, left ventricular diastolic function index is more sensitive than systolic function.