Chiang S T, Green J, Kao Y C
Institute of Physiology, National Yang-Ming Medical College, Taipei, Taiwan, Republic of China.
Chest. 1988 Mar;93(3):537-40. doi: 10.1378/chest.93.3.537.
Previous studies have indicated that total respiratory resistance (Rrs) can be measured by addition of an external resistor. In an earlier study, the apparatus used to accomplish this included a multiperforated steel plate. In this study, we sought to improve the device. Details of this are given in this article. With this device, resistance was found to be reproducible over five consecutive days, and was sensitive to the increase in airway resistance induced by head and neck flexion. We also report on a comparison between this method and a commercially available device that works on the "interruptor" principle. There was no significant difference in either mean or variance of resistance between the two methods. The instrumentation required for the newly designed method is minimal, and its operation is simple. Furthermore, the measurement can be performed without invasive procedures during tidal breathing.
先前的研究表明，总呼吸阻力（Rrs）可通过添加外部电阻器来测量。在早期的一项研究中，用于实现这一目的的装置包括一块多孔钢板。在本研究中，我们试图改进该装置。本文给出了相关细节。使用该装置时，发现阻力在连续五天内具有可重复性，并且对头颈屈曲引起的气道阻力增加敏感。我们还报告了该方法与基于“阻断器”原理的市售装置之间的比较。两种方法在阻力均值或方差上均无显著差异。新设计方法所需的仪器设备最少，且操作简单。此外，在潮气呼吸期间无需侵入性操作即可进行测量。
