Sebert P, Sanchez J, Monod H
Aviat Space Environ Med. 1982 May;53(5):485-8.
Cardiac response to breath-holding is generally described as a bradycardia, which is explained by a two-fold mechanism involving the pulmonary mechanoreceptors and the arterial chemoreceptors. This study was conducted to determine the cardiac effects of five successive apnea periods separated by 1 min of free ventilation (FV). Heart rate (HR) and ventilation (V, VT, f) were measured during this protocol in 12 young subjects (6 men, 6 women). Ventilatory responses during FV periods were similar in both sexes, but HR responses were different during the apnea periods. The mean exhibited a bradycardia and the women a tachycardia. Although the statistical significance of the results was weak, they showed a clear tendency which was interpreted as differences in central cardioventilatory interactions. Sex difference in the cardiac consequences of static work from respiratory muscle is also evoked.
屏气时的心脏反应通常被描述为心动过缓，这可以通过一种双重机制来解释，该机制涉及肺机械感受器和动脉化学感受器。本研究旨在确定五个连续的屏气期（中间间隔1分钟的自主通气）的心脏效应。在该实验方案中，对12名年轻受试者（6名男性，6名女性）的心率（HR）和通气（V、VT、f）进行了测量。自主通气期间的通气反应在两性中相似，但屏气期间的心率反应不同。男性表现为心动过缓，而女性表现为心动过速。尽管结果的统计学意义较弱，但它们显示出明显的趋势，这被解释为中枢心肺相互作用的差异。同时也引发了关于呼吸肌静态工作对心脏影响的性别差异的讨论。
