踏台昇降による女子学生の循環機能検査法

Abstract

The Harvard Step Test as the circtlatory function test for youth has often been used in recent years. However, it has been said that the height of the bench is too high for female subjects. So, three kinds benches; 30, 35 and 40cm high, were used to test above mentioned opinion, and duration of the exercise were varied from 3 though 5 minutes. Then, expiratory gases, Oxygen-intake, E. C. G., blood pressure, heart-rate were examined during and after exercise. 1) Oxygen-consumption was increase with the increase of duration of exercise and with increase of height of the bench. And the trained subjects required a little oxygen in the same exercise than the untrained. 2) Using higher benches, heart-rate during the exercise was more rapid, and recovery time was longer than when using lower one. The female subject's heart-rate was quicker during exercise, and the recovery time was longer than that of males'. 3) Because of the simplicity of exercise and the easiness for discovering the abnormal symptoms, the optimum load was found; the height of the bench 35cm, the duration of exercise 3 minuets. 4) The pulse was examined with more than 700 students after the new load described above. For the subjects who showed quicker pulse after the exercise, the E.C.G. and other exact examination were given, and some abnormal symptoms at rest were noticed.