OSCILLATION MECHANICS OF LUNGS AND CHEST IN MAN
OSCILLATION MECHANICS OF LUNGS AND CHEST IN MAN
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DOI：
10.1152/jappl.1956.8.6.587
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发表时间：
1956-01-01
影响因子：
3.3
通讯作者：
BURGESS, BF
中科院分区：
文献类型：
--
作者：
DUBOIS, AB;BRODY, AW;BURGESS, BF
胸部由振荡空气泵驱动，该振荡空气泵在口部或身体周围产生正弦压力波，并且胸部的整体阻抗由压力计和流量计以2至15 cps的频率测量。用速度传感器测量胸壁的频率响应特性，并表明可能的共振频率为7至15 cps。通过测量人体腹部表面的速度和人体相对于台面的头足速度，间接推导出膈肌和腹部的频率响应特性。气道可能被表征为通向胸壁和隔膜的电阻-电容系统，其可以被表示为响应于驱动经胸压力波而表现出垂直表面波和横向表面波的粘弹性块状表面。
The chest was driven by an oscillating air pump which generated sinusoidal pressure waves at the mouth or around the body and the over-all impedance of the chest was measured by a pressure gauge and flowmeter at frequencies from 2 to 15 cps. The frequency response characteristics of the chest wall were measured with velocity transducers and indicated probable resonant frequencies of 7 to 15 cps. The frequency response characteristics of the diaphragm and abdomen were indirectly deduced from measuring velocity of the abdominal surface and headward-footward velocity of the body with respect to the table. The airways can probably be characterized as a resistance-capacitance system leading to the chest wall and diaphragm, which may be represented as visco-elastic massive surfaces exhibiting both perpendicular and transverse surface waves in response to the driving transthoracic pressure waves.