运动员心功能评估新方法和新指标的研究

Research on a new method and index for evaluating cardiac function of the athletes

目的:探讨无创检测和评估心功能的新指标和新方法。方法:随机抽取81名体育系学生(实验组,n=81)和41名普通系学生(对照组,n=41),完成规定运动量的台阶运动后,通过采集心音信号,进行了心率,D/S比值以及S1/S2比值的对照研究。结果:在静息状态下,体育系学生的心率为66.2±8.7,D/S比值为2.04±0.33;普通系学生的心率为70.8±8.0,D/S比值为1.82±0.27;在全运动量下,体育系学生的S1/S2比值为7.34±4.04;普通系学生的S1/S2比值为5.22±2.38。结论:体育系学生比普通系学生具有较高水平的心脏储备。该方法可用来评估运动员与一般人的心脏储备,为运动员选拔以及一般人体质评估提供一种客观量化的新指标。

Objective： To explore the new indexes and new methods for the noninvasive measuring and evaluating cardiac function detection of the athletes. Methods： Heart sound signals were sampled randomly from 81 students in physical education department（experiment group） and 41 students in genera/departments（control group） after completing designed workload during step-climbing exercise, the contrast study on heart rate, D/S ratio as well as the S1/S2 ratio of students from physical education and general department has been conducted. Results; In the resting state, the physical education department students＇ heart rate and D / S ratio was 66 ± 8.7 and 2.04 ± 0.33 respectively; general department students＇ heart rate and D/S ratio was 71 ± 8.0 and 1.82 ±0.27 respectively. In the whole exercise, the physical education department students S1/S2 ratio was 7.34 ± 4.04; general department students S1/S2 ratio was 5.22 ± 2.38. Conclusion： Students from physical education department have higher level of cardiac reserve than that of students from general department. The method can evaluate cardiac reserve for athletes and general persons, and provide a new quantity evaluation index for selecting athletes and evaluating cardiac function of general persons.