Efficacy of Pursed Lips Breathing with Forced Expiration Techniques and Active Cycle of Breathing Technique on Pulmonary Mucus Clearance in Healthy Subjects
Year: 2010
Type: article
Abstract: Purpose] To investigate the efficacy of pursed lips breathing with forced expiration techniques (PLB & FETs) and the active cycle of breathing technique (ACBT) on pulmonary mucus clearance in healthy subjects.[Methods] Three healthy subjects volunteered for the study.Pulmonary mucus clearance was measured over 70 minutes on three different days by a radioaerosol technique.Each subject attended three sessions, one each of control (normal breathing), PLB & FETs and ACBT.[Results] The efficacy of both airway clearance techniques was similar, but better than that of normal breathing.In the central lung zone, PLB & FETs demonstrated a slight enhancement of mucus clearance as compared with ACBT and normal breathing.In the intermediate and peripheral zones, PLB & FETs and ACBT resulted in a relatively high mucus clearance as compared with normal breathing.Overall mucus clearance of normal lungs was remarkably improved by PLB & FETs and ACBT.[Conclusion] Enhanced mucus clearance in healthy subjects, particularly in the intermediate and peripheral lung zone, can be achieved by PLB & FETs and ACBT.
DOI: 10.1589/jpts.22.247
Institutions: Mahidol University, Ramathibodi Hospital, Siriraj Hospital
Language: English
Subfield: Pulmonary and Respiratory Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W2057716614