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李石柱,李啓暎 경희대학교 체육과학연구소 1989 體育學論文集 Vol.17 No.-
The main object of these experiments was to study the changes of Heart Rate and Blood pressure during the recovery period at different work loads. A running exercise was performed on a treadmill at 5MPH, 15% grade by 1 min group, 2 min group,.3.min group of athletic subjects, respectively. The subjects employed were 58 male athletes of K university. The conclusion of this study were as follow : A. The heart rate was 65.43 ± 1.064 beats/min at rest. And it was abruptly decreased the early recovery period and then gradually decreased. It wasn't fully restored to the resting level by 20 min after exercise in any of the 3 groups. B. The systolic pressure was significantly increased from 119.84 ± 2.51 mmHg at rest to 158.49 ± 2.87 mmHg, 168.49 ± 5.43 mmHg, and 170.41 ± 4.64 mmHg at 1 min after exercise in 1,2, and 3 min groups, respectively. The resting level was restored by 10 min in each group. C. The diastolic pressure was significantly decreased at 1 min after exercise in each group and then gradually increased. It reached the resting level at 10 min after exercise in 1 and 2 min groups, but was significantly higher than the resting level in 3 min group.