Effects of respiratory apparatus on breathing pattern
- 1 April 1980
- journal article
- research article
- Published by American Physiological Society in Journal of Applied Physiology
- Vol. 48 (4) , 577-580
- https://doi.org/10.1152/jappl.1980.48.4.577
Abstract
The effects of ventilatory apparatus on breathing pattern and gas exchange were studied in normal supine subjects. Using a canopy system, measurements of O2 consumption, CO2 production, tidal volume (VT), frequency (f), minute ventilation, mean inspiratory flow, and inspiratory, and expiratory time (TI and TE) were made and compared to data obtained with the use of a mask (m) and mouthpiece plus noseclip (mp + nc). Use of the m or mp + nc caused a 32.5 and 15.5% increase in VT, respectively, whereas f, TI, and TE remained unchanged. As TI did not change the increase in VT was caused entirely by increased inspiratory flow.This publication has 2 references indexed in Scilit:
- Pulmonary Ventilation Measured from Body Surface MovementsScience, 1967
- Pattern of ventilation in young adultsJournal of Applied Physiology, 1964