20
Participants
Start Date
March 1, 2018
Primary Completion Date
December 1, 2018
Study Completion Date
March 1, 2019
inspiratory pressure threshold device
The threshold loading device is composed of a mouth -piece attached to a small plastic cylinder that contains a spring-loaded poppet value. The valve opens to permit inspiratory flow only once the person has generated adequate negative intrathoracic pressure to condense the spring.
Zhujiang Hospital,Southern Medical Universtiy, Guangzhou
Zhujiang Hospital
OTHER