Effects of respirator dead space, inspiratory resistance, and expiratory resistance ventilatory loads.
Effects of respirator dead space, inspiratory resistance, and expiratory resistance ventilatory loads.
复制标题
呼吸器死腔、吸气阻力和呼气阻力通气负荷的影响。
DOI：
10.1002/ajim.4700160210
复制
发表时间：
1989
影响因子：
3.5
通讯作者：
Fine,G
中科院分区：
文献类型：
--
作者：
Harber,P;Shimozaki,S;Barrett,T;Losides,P;Fine,G
The effects of respiratorlike inspiratory resistance (IR), expiratory resistance (ER), and dead space (DS) were assessed in a group of 11 normal volunteers during moderate steady‐state (SS) and rapidly incremented (RI) exercise. The physiologic effects of IR were predominant, increasing inspiratory time, duty cycle, and several measures of ventilatory work. Effects of DS appear related to increased minute ventilation and include increasing flow rates and duty cycle and requiring greater ventilatory work; during RI exercise, the DS effect became relatively smaller at higher exercise levels. ER compressed expiratory time. These results characterize the response to IR, ER, and DS loads and suggest that DS may be relatively less physiologically significant than IR.
