一流柔道選手における運動中及び回復時の心応答
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概要
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We measured cardiac functions during exercise and recovery in 11 Japanese top Judo athletes by impedance cardiography and the relationships between the cardiac functions and the body weight or heart volume were also investigated.The results as follows:1. During exercise, heart rate, stroke volume, and cardiac output increased acutely in the all Judo athletes and the mean values of the max. heart rate (beats/min.), max. stroke volume (ml) and max. cardiac output (1/min.) were 138±22,140±40,18.8±3.7, in the lightweight class,139± 17,146± 17,19.4±2.0 in the middle, light heavyweight class, and 157±14,182±21,28.7±5.3 in the heavyweight class, respectively.2. In the relative changes of cardiac responses to exercise, there were no significant differences in heart rate, stroke volume, and cardiac output during the three groups. But in the recovery phase, the middle, light heavyweight class and the heavyweight class Judo athletes needed more times to restore the respective rest values than the lightweight class Judo athletes.3. The body weight correlated positively with max. heart rate (r=0.57, p<0.05), max. stroke volume (r=0.76, p<0.01), and max. cardiac output (r=0.89, p<0.001), respectively.4. Similarly, good correlation (r=0.77, p<0.01) was observed between heart volume and max. stroke volume. The results of this study demonstrate that cardiac responses during exercise and recovery in the Judo athletes are affected by the body weight.
- Japanese Academy of Budoの論文
Japanese Academy of Budo | 論文
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