DiCicco, 12/14/98

Cardiopulmonary Physical Therapy Journal, ... and vibration. Postural drainage is a technique in which the patient is positioned to facilitate gravity drainage of secretions from the airways. Percussion is a technique of clapping the chest wall. Vibration applies fine shaking of the chest wall, usually during the expiratory phase. Percussion and vibration can be applied using either manual or ... ................
................