The Effect of Respiratory Muscle Training for Patients With COPD and Mild Cognitive Impairment

Inspiratory and expiratory muscle training were performed using a breathing trainer (Dofin DT11/14, Galemed Co. Ltd, Taiwan) for 30 minutes a day with a total of eight weeks. Before the training, the MIP and maximal expiratory pressure (MEP) were documented by the best performance of three trials with a digital pressure gauge (GB60, Jitto International Co. Ltd, Taiwan)