Changes in ventilation and chest wall mechanics during sleep in normal adolescents.
Changes in ventilation and chest wall mechanics during sleep in normal adolescents.
复制标题
正常青少年睡眠期间通气和胸壁力学的变化。
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
H. Levison
中科院分区：
文献类型：
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作者：
E. Tabachnik;N. Müller;A. C. Bryan;H. Levison
用呼吸感应体积描记仪和表面肌电信号电极研究了9名正常青少年睡眠状态对换气和呼吸力学的影响。每分钟通气量呈状态依赖性(P<0.01)，从清醒到非快速眼动(NREM)睡眠平均减少8%，从NREM睡眠到快速眼动(REM)平均增加4%。这些变化是由呼吸频率的变化引起的。潮气量(VT)不受睡眠状态的影响(P>0.10)。清醒时的呼吸模式类似于快速眼动睡眠。与清醒状态相比，NREM睡眠时肋间和横隔肌活动分别平均增加34%和11%，说明呼吸负荷增加。随之而来的是胸腔对室速的贡献显著增加。REM睡眠与肋间肌肉活动显著降低(P<0.05)和肋间肌笼贡献减少相关；VT由于横隔肌活动平均增加34%而得以维持(P<0.05)。
The effect of sleep state on ventilation and the mechanics of breathing was studied in nine normal adolescents by use of a respiratory inductive plethysmograph and surface electromyogram electrodes. Minute ventilation was state dependent (P less than 0.01), decreasing by a mean of 8% from wakefulness to nonrapid-eye-movement (NREM) sleep and increasing 4% from NREM to rapid-eye-movement (REM) sleep. These changes were caused by changes in respiratory rate. Tidal volume (VT) was not affected by sleep state (P greater than 0.10). The pattern of breathing during wakefulness was similar to that of REM sleep. During NREM sleep intercostal and diaphragmatic muscle activity increased by a mean of 34% and 11%, respectively, as compared with wakefulness, indicating an increase in the respiratory work load. This was accompanied by a substantial increase in rib cage contribution to VT. REM sleep was associated with a marked decrease in intercostal muscle activity (P less than 0.05) and a diminished rib cage contribution; VT was maintained due to a mean increase of 34% in diaphragmatic muscle activity (P less than 0.05).