Purpose of the Study Chronic Obstructive Pulmonary Disease (COPD) is a progressive, long-term lung condition that limits airflow and makes breathing difficult. People with COPD frequently experience shortness of breath, chronic coughing, and mucus buildup, which can severely impact their daily activities and overall quality of life. While medications are commonly used, non drug therapies like specialized breathing exercises are becoming vital tools to help relieve symptoms.
The purpose of this study is to compare two popular breathing techniques the Active Cycle of Breathing Technique (ACBT) and Pursed-Lip Breathing (PLB) to determine which method is more effective at improving lung function, reducing breathlessness, and enhancing the overall quality of life for individuals living with moderate to severe COPD.
Study Plan and Methods
This study is a randomized controlled trial lasting approximately 8 to 10 months. A total of 40 eligible participants (both men and women aged 40 to 55) will be recruited and randomly split into two equal groups:
Group A (Active Cycle Breathing): Participants will practice ACBT, which combines relaxed breathing, deep chest-expanding breaths, and a specialized coughing technique ("huffing") to clear trapped mucus from the lungs Group B (Pursed-Lip Breathing): Participants will practice PLB, a technique where they inhale slowly through the nose and exhale gently through puckered lips (like blowing out a candle) to slow down breathing and improve ventilation Both groups will receive their assigned breathing exercise alongside standard medical care and a baseline postural drainage treatment. Exercises will be performed in 15-to-20-minute sessions, twice a day, for a total of 8 weeks.
Expected Outcomes Researchers will evaluate participants before and after the 8-week program using standard lung function tests (spirometry), breathlessness questionnaires, and quality-of-life assessments. The study expects both techniques to offer relief, but aims to identify if one method provides superior evidence-based benefits. The ultimate goal is to help physical therapists and doctors design more effective, personalized pulmonary rehabilitation programs for COPD patients.
Inclusion Criteria:
Exclusion Criteria:
• Patients with recent abdominal, and thoracic surgery.
For Arm 1 (Group A), enter this text into the description field: Active Cycle of Breathing Technique (ACBT) group. Participants in this arm will perform the Active Cycle of Breathing Technique, which combines three phases: breathing control (relaxed breathing), thoracic expansion (deep breaths), and the forced expiratory technique ("huffing") to mobilize and clear mucus from the lungs. The intervention will be administered in 2 sessions per day for a total duration of 8 weeks. Each session will last approximately 15 to 20 minutes. Participants will also receive standard COPD medical care and medication, alongside standard baseline postural drainage.
Pursed Lip Breathing (PLB) group. Participants in this arm will perform Pursed Lip Breathing, a technique where they slowly inhale through the nose for 2 counts and gently exhale through puckered lips for 4 or more counts to slow breathing and improve ventilation. The intervention will be administered in 2 sessions per day for a total duration of 8 weeks. Each session will last approximately 15 to 20 minutes. Participants will also receive standard COPD medical care and medication, alongside standard baseline postural drainage.
Lahore, Punjab Province, Pakistan
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