35
Participants
Start Date
July 31, 2013
Primary Completion Date
November 20, 2015
Study Completion Date
November 20, 2015
Incentive spirometer training
The incentive spirometer, a device that can help improve breathing and strengthen inspiratory muscles. First, the subjects exhaled normally, then placed the mouthpiece in their mouth and sealed their lips around the mouthpiece. Then they inhaled slowly and deeply with their lips sealed tightly on the mouthpiece. After they inhaled as deeply as possible, held their breath for at least 3 seconds, and then removed the mouthpiece from their mouth and breathed out normally. Subjects repeated this technique 10-15 times. When they finished 10-15 exercises, they took a deep breath and coughed. The training was performed ten sessions daily, for 4 weeks.
Severance hospital, Seoul
Yonsei University
OTHER