流量幅度对接近零流量时测定的肺阻力的影响。

Influence of flow amplitude on pulmonary resistance determined near zero flow.

作者信息

Clément J, Bobbaers H, Van De Woestijne K P

出版信息

Respir Physiol. 1980 Jul;41(1):61-9. doi: 10.1016/0034-5687(80)90023-7.

Abstract

Pulmonary resistance, determined near zero flow by means of the isovolume technique, increases with the total amplitude of flow. This variation observed in healthy subjects at two frequencies, and documented also by other investigators, was stimulated in a model study. The main factor responsible for the amplitude dependence of pulmonary or airway resistance appears to be the asymmetrical elastic characteristics of the airways.

摘要

通过等容技术在接近零流量时测定的肺阻力随流量总幅度增加。在健康受试者中于两个频率观察到的这种变化，其他研究者也有记录，在一项模型研究中得到了验证。肺或气道阻力对幅度依赖性的主要负责因素似乎是气道的不对称弹性特征。