England S J, Bartlett D, Knuth S L
J Appl Physiol Respir Environ Exerc Physiol. 1982 Jul;53(1):81-6. doi: 10.1152/jappl.1982.53.1.81.
Respiratory vocal cord movements were analyzed in healthy human subjects during air breathing and in isocapnic hypoxia and hypercapnia. In the majority of experiments, expiratory glottic narrowing was substantially greater during hypoxia than during hypercapnia. Because ventilations were carefully matched under these two conditions, it is concluded that hypoxic stimulation of peripheral chemoreceptors favors expiratory glottic narrowing and leads to a relatively high laryngeal airflow resistance. In contrast, hypercapnia is accompanied by low expiratory laryngeal resistance. Similar rates of expiratory airflow with these two stimuli must be achieved by different balances of the factors that determine this flow.
在健康人体受试者进行空气呼吸、等碳酸血症性低氧和高碳酸血症期间，对呼吸时声带运动进行了分析。在大多数实验中，低氧期间呼气声门变窄程度明显大于高碳酸血症期间。由于在这两种情况下通气量经过仔细匹配，得出的结论是，外周化学感受器的低氧刺激有利于呼气声门变窄，并导致相对较高的喉部气流阻力。相比之下，高碳酸血症伴随着较低的呼气喉部阻力。这两种刺激下相似的呼气气流速率必定是由决定该气流的各因素的不同平衡来实现的。
