ENHANCED VENTILATORY AND HEART RATE RESPONSIVENESS TO HYPOXIA DURING MODERATE EXERCISE IN MAN
ENHANCED VENTILATORY AND HEART RATE RESPONSIVENESS TO HYPOXIA DURING MODERATE EXERCISE IN MAN
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增强人类适度运动期间的通气和心率对缺氧的反应
DOI：
10.7600/jspfsm1949.37.93
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发表时间：
1988
影响因子：
--
通讯作者：
Y. Honda
中科院分区：
文献类型：
--
作者：
Y. Ohyabu;Midori Sato;Y. Honda
一名男性和11名女性受试者进行了检查，以比较他们的呼吸和心率反应性缺氧在休息和中等运动（60 W）。1)安静时和运动时的低氧反应曲线斜率分别为306.5·229.5和1082.9·928.3l·Emin-1·EmmHg。2）安静时和运动时低氧-心率反应曲线（AHR）斜率分别为704.9·477.3和1165.5·587.8次·Emin-1·EmmHg。后者显著大于前者（p<0.05）。3)AVE与AHR呈显著相关（p<0.05）。4)潮气末PO_2 50 mmHg时的通气量和心率的增加量与潮气末PO_2 50 mmHg时的通气量和心率的增加量之间也有显著的相关性（p<0.01）。这些结果表明，运动过程中的低氧呼吸和心率反应性显着大于休息，并指出呼吸和心脏调节之间的关系的高度协同性。（Jpn. J. Phys. Fitness Sports Med. 1988，37：93·`99）关键词：通气，心率，缺氧，运动，人。
One male and eleven female subjects were examined in order to compare their ventilatory and heart rate responsiveness to hypoxia at rest and during moderate exercise (60 W). 1) The slopes of the ventilatory response curve to hypoxia (AVE) were 306.5•}229.5 and 1,082.9•}928.3l•Emin-1•EmmHg at rest and during exercise, respectively. Significant difference (p<0.05) between the two groups was found. 2) The slopes of the hypoxia-heart rate response curve (AHR) were 704.9•}477.3 and 1,165.5•}587.8 beats•Emin-1•EmmHg at rest and during exercise, respectively. The latter was significantly greater than the former (p<0.05). 3) A significant relationship between AVE and AHR was observed (p<0.05). 4) The relationship between ‡TMVE50 and ‡TMHR50, the increments of ventilation and heart rate from room-air to end-tidal Po2 50 mmHg, was also significant (p<0.01). These results indicate that hypoxic ventilatory and heart rate responsiveness during exercise is significantly greater than at rest, and point to the highly synergistic nature of the relationship between respiratory and cardiac regulations. (Jpn. J. Phys. Fitness Sports Med. 1988, 37 : 93•`99) key words : Ventilation, Heart Rate, Hypoxia, Exercise, Man.