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前言运动训练对人体机能能力的提高有着良好的作用。因运动训练而发生的各种适应性变化是人体重要的功能之一。在运动训练中,运动员的心脏所承受的负荷远远地超过了正常人,因此心血管系统必然会发生与一般人不同的变化。多晶断面超声心动图,能把心脏的某一个断层面,以一幅动态的二维声像图像显示出来,并可通过它来测定心脏形态结构量值和功能的变化。这种技术操作简便、容易掌握,可直接测得结果,使对心脏形态结构所发生的适应性变化的研究更
Preface Exercise training has a good effect on the improvement of human functional ability. A variety of adaptive changes that occur as a result of exercise training are one of the important functions of the body. In sports training, the athlete’s heart is far more loaded than the normal human heart, so the cardiovascular system is bound to occur with the average person different changes. Polycrystalline cross-sectional echocardiography, a heart of a fault plane, with a dynamic two-dimensional sound image display, and can be used to determine the changes in the value of cardiac morphological structure and function. This technique is simple, easy to grasp, and allows direct measurement of the results, making the study of the adaptive changes that occur to the morphology of the heart more