A Pilot Randomized Control Cross over Study Evaluating the Effectiveness and Safety of Mechanical Percussor Compared with Conventional Chest Physiotherapy in Adults with Productive Cough.

Introduction: Conventional Chest Physiotherapy (CCPT) remains the mainstay of treatment for sputum mobilization in patients with productive cough such as bronchiectasis and "Chronic Obstructive Airway Disease" (COPD). However CCPT is time consuming requires the assistance of a physiotherapist and limits the independence of the patient. Mechanical percussors which are electrical devices used to provide percussion to the external chest wall might provide autonomy and greater compliance.