Fractionating respiratory resistance in young children
- 1 September 1979
- journal article
- research article
- Published by American Physiological Society in Journal of Applied Physiology
- Vol. 47 (3) , 551-555
- https://doi.org/10.1152/jappl.1979.47.3.551
Abstract
Total respiratory resistance (Rrs) and the fraction of this resistance located peripherally, (Fp) were measured in a group of children (3-5 yr old). The technique used forced random noise to characterize the frequency dependence of effective resistance and an algorithm to compute Rrs and Fp from these data. The overall mean value .+-. SD for Fp was 0.534 .+-. 0.070; the mean value of 0.464 for the 6 children near 5 yr of age was significantly different (P < 0.001) from the mean value of 0.576 found in the younger children. The overall mean value .+-. SD for Rrs was 16.9 .+-. 5.8 cmH2O .cntdot. l-1 .cntdot. s; individual values appeared to be correlated with height. These results agree with previous reports indicating that children have a larger fraction of respiratory resistance in the periphery than do adults.This publication has 8 references indexed in Scilit:
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