自転車エルゴメーター作業中の呼吸循環機能に及ぼす作業姿勢の影響

概要

論文の詳細を見る
Ten healthy and well motivated male subjects (19-33years of age) of average fitness participated in this study. The subjects performed leg exercise using Monark bicycle ergometer at submaximal and maximal work loads in three different postures ; A, sitting position ; B, horizontal supine position ; and C, supine position with legs 45°up. The results obtained from the present study were summarized as follows : 1) The significant high correlation coefficient was found in all three different postures between oxygen uptake and heart rate for submaximal work loads. This result indicates that the almost same relationship was obtained between oxygen uptake and heart rate and muscle mass involved were identica] irrespective of the type of exercise. 2) The exhaustion time in horizontal position and in supine position with legs 45°up were on the average 24% and 29% shorter than the exhaustion time in sitting position respectively. 3) The VO_2 max in sitting position, horizontal position and supine position with legs 45°up were 3.00, 2.84, and 2.62 l/min respectively. The significantly higher VO_2 max was obtained from sitting position. 4) It may be suggested that local fatigue limits work performance before central circulation maximally engaged in both horizontal position and supine position with legs 45°up in maxima] leg exercise. Moreover, change of hemodynamic responses with postural change may influence work performance.
中京大学の論文
1976-06-01