50
Participants
Start Date
June 1, 2014
Primary Completion Date
May 31, 2017
Study Completion Date
June 1, 2017
incentive spirometer
patients were instructed how to use the IS in a seated or semi-seated position, and to maintain sustained maximal inspiration for 3-5 seconds before exhalation, ten times per hour, and for at least eight hours a day.
Chang Gung Memorial Hospital
OTHER