Whole-body Vibration on Mucus Clearance, the Quality of Life, and Exercise Capacity for Patients With Chronic Obstructive Pulmonary Disease

Subjects received the interventions twice a week for 8 weeks. HFCWO+WBVT group received additional 30 minutes WBVT treatment. In every WBVT session, three rounds of 3 minutes of vibration (amplitude: 2 mm; frequency: 20 Hz) were provided, with a 60-second rest between rounds.

Subjects received the interventions twice a week for 8 weeks. The HFCWO was delivered by a respiratory therapist using a percussive vest at 10-13 Hz oscillating frequency and at a pressure setting of 2 cm H2O. The treatment duration was 25 minutes, and the participants remained in a sitting position.