alongside footage of the former reality TV star using what looks to be a PEP (positive expiratory pressure) device—which helps air move through the lungs and keeps them expanded—or some ...

Furthermore, the use of Positive Expiratory Pressure (PEP) devices, such as the Acapella device, has been shown to influence vocal source characteristics. Studies indicated that phonation through ...

Mechanical vibration devices High frequency chest wall ... Non-invasive ventilation; PEP: Positive expiratory pressure; TPGLF: Two-phase gas-liquid flow. COPDX Patients who regularly expectorate ...