锻炼使人长寿,运动使人健康,这已是人所共知的普通常识,运动训练对人体的各种生理机能都有良好的促进作用,尤其是对人的心血管系统作用更是非同一般。国外研究表明,心脏的容积按照训练刺激的数量、时间和强度的增长而逐渐增大,东德曾将52名女子运动员——其中有800米跑、手球、滑雪、游泳、短跑运动员和体院学生与50名非运动员加以比较, Exercise longevity, exercise makes people healthy, it is well-known common sense, exercise training on the human body a variety of physiological functions have a good role in promoting, especially on the human cardiovascular system is even more unusual . Foreign studies show that the volume of the heart gradually increases in accordance with the number, time and intensity of training stimuli. In East Germany, 52 women athletes, including 800-meter runners, handball, skiing, swimming, sprinter and body hospital, Students compared with 50 non-athletes,