Sputum rheology changes in cystic fibrosis lung disease following two different types of physiotherapy: flutter vs autogenic drainage

EM App, R Kieselmann, D Reinhardt, H Lindemann… - Chest, 1998 - Elsevier
Objective The aim of the present study was to investigate the efficacy of two frequently used
physiotherapies (PTs) for the removal of bronchial secretions in cystic fibrosis (CF) lung
disease: autogenic drainage (AD) and the Flutter (Desitin in Germany). AD is believed to
improve mucus clearance from peripheral to central airways due to airway caliber changes
in combination with a special breathing technique. The Flutter is an easy-to-use
physiotherapy device based on oscillations of a steel ball during expiration through a pipe …