Beardsmore C S, MacFadyen U M, Moosavi S S, Wimpress S P, Thompson J, Simpson H
Department of Child Health, University of Leicester, England.
Pediatr Pulmonol. 1989;7(2):71-7. doi: 10.1002/ppul.1950070204.
The question of whether functional residual capacity (FRC) falls in infants during active sleep has been clouded by studies using different subject groups and techniques for measurements of lung volume and determination of sleep state. Twenty healthy full-term infants within the first week of life participated in the present study. Neurophysiological and behavioral criteria were used to define sleep state, and measurements of FRC were made using a specially constructed closed-circuit helium dilution system. Regularity of respiration was recorded using magnetometers on the chest and a modified respirator monitor. Results showed that no significant changes in FRC occurred, related either to sleep state or to regularity of respiration. In addition, we failed to detect any differences in FRC between the sexes.
使用不同的研究对象组以及测量肺容量和确定睡眠状态的技术，使得关于婴儿在主动睡眠期间功能残气量（FRC）是否下降的问题变得模糊不清。本研究纳入了20名出生后第一周内的健康足月儿。采用神经生理学和行为标准来定义睡眠状态，并使用专门构建的闭路氦稀释系统测量FRC。使用胸部磁力计和改良的呼吸监测仪记录呼吸规律。结果显示，FRC没有发生显著变化，无论是与睡眠状态还是与呼吸规律均无关。此外，我们未能检测到两性之间FRC存在任何差异。
