Gurley W H, Vig P S
Am J Orthod. 1982 Jul;82(1):33-41. doi: 10.1016/0002-9416(82)90543-7.
A technique is developed which for the first time enables the direct and simultaneous measurement of inspired and expired air, both orally and nasally. The apparatus for such measurement consists of a Plexiglas chamber in which the subject's head is enclosed. Attached is a series of valves, flowmeters, differential air pressure transducers, and a physiography for the recording of respiratory activity. The apparatus used in data collection is described. The reliability of the instrument is established. The analysis of the physiographic record is explained and illustrated by data from six trials. The use of this technique to describe respiratory mode is discussed, together with indications for its future use in orthodontics and other research areas.
开发了一种技术，首次能够直接同时测量经口和经鼻吸入和呼出的空气。这种测量装置由一个有机玻璃腔室组成，受试者的头部置于其中。连接有一系列阀门、流量计、差压传感器以及用于记录呼吸活动的生理记录仪。描述了数据收集过程中使用的仪器。确定了该仪器的可靠性。通过六个试验的数据对生理记录的分析进行了解释和说明。讨论了使用这种技术来描述呼吸模式的情况，以及其在正畸学和其他研究领域未来的应用前景。
