COMPARATIVE EFFECTS OF PURSED-LIP BREATHING COMBINED WITH THE SIX-MINUTE WALK TEST VERSUS THE SIT-TO-STAND TEST ON DYSPNEA, PEAK EXPIRATORY FLOW RATE, AND OXYGEN SATURATION IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE: A RANDOMIZED COMPARAT
Background: Chronic obstructive pulmonary disease (COPD) is among the leading causes of morbidity and mortality worldwide and is characterised by persistent dyspnea and diminished exercise capacity. Field-based functional tests combined with breathing retraining are increasingly used in pulmonary rehabilitation, yet di...