Lung volume for initiation of phonation
- 1 May 1965
- journal article
- research article
- Published by American Physiological Society in Journal of Applied Physiology
- Vol. 20 (3) , 480-482
- https://doi.org/10.1152/jappl.1965.20.3.480
Abstract
The percent of vital capacity at which phonation is normally initiated was investigated. Thirty normal young male and thirty normal young female adults breathed oxygen in a closed circuit respirometer in a standing position. Vital capacity, expiratory reserve, tidal volume for breathing, and phonation volume were determined for each subject. The mean percent of vital capacity at which phonation is normally initiated was found to be 49.7 for males and 50.3 for females. These values approximate end-inspiratory volumes during quiet breathing in the upright posture. breath stream dynamics; communication; respiratory muscle activity; electromyography; respiration Submitted on July 13, 1964This publication has 0 references indexed in Scilit: