| タイトル | Cardiovascular responses to exercise as functions of absolute and relative work load |
| 著者（英） | Graham, R. M.; Lewis, S. F.; Blomqvist, C. G.; Schutte, J. E.; Pettinger, W. A.; Taylor, W. F. |
| 著者所属（英） | Texas Univ. Health Science Center |
| 発行日 | 1983-05-01 |
| 言語 | eng |
| 内容記述 | The roles of absolute and relative oxygen uptake (VO2 and percent of muscle group specific VO2-max) as determinants of the cardiovascular and ventilatory responses to exercise over a wide range of active muscle mass are investigated. Experiments were conducted using four types of dynamic exercise: one-arm curl, one-arm cranking, and one and two-leg cycling at four different relative work loads (25, 50, 75, and 100 percent of VO2-max) for the corresponding muscle group. Results show that VO2 during maximal one-arm curl, one-arm cranking, and one-leg cycling averaged 20, 50, and 75 percent, respectively, of that for maximal two-leg cycling. Cardiac output was determined to be linearly related to VO2 with a similar slope and intercept for each type of exercise, and the heart rate at a given percent VO2-max was higher with larger active muscle mass. It is concluded that the cardiovascular responses to exercise was determined to a large extent by the active muscle mass and the absolute oxygen uptake, with the principal feature appearing to be the tight linkage between systematic oxygen transport and utilization. |
| NASA分類 | AEROSPACE MEDICINE |
| レポートNO | 83A32817 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/404212 |
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