サイン波加圧法による人の呼吸気流抵抗の測定について

概要

論文の詳細を見る
The principle of the imposed oscillating pressure method for measuring total respiratory flow resistance is based on the Mead's concept that an impedance of the mouth-chest system, simulated by an electrical equivalent circuit, represents the flow resistance when the reactance of the system is to be zero by imposing a sine-waved oscillating pressure with specific cycles into a bodyplethysmograph, in which human body is placed. The detailed procedure of the method for guinea pig was described in authors' previous report.The present paper describes in detail apparatus and procedure for measuring total respiratory flow resistance in human subjects.It is noted that, when the frequency of the sine wave is increased more than about 12 c.p.s., the impedance of the mouth-chest system is also increased.Without harming human subjects, this method permits rapid screening tests for measuring respiratory function in human subjects, when we use pertinent frequencies of the imposed pressure, i.e. from 8 to 10 c.p.s.
日本衛生学会の論文