Additional Effects of Box Breathing Technique With Short Term Pulmonary Rehabilitation on Dyspnea and Functional Capacity in Patients With Chronic Obstructive Pulmonary Disease

Patients in this group will receive short term pulmonary rehabilitation along with pharmacological management. A total of 3 weeks protocol will be followed in which 2 seesions per week will be supervised by physiotherapist. Short term pulmonary rehabilitation includes: Warm-up(5-7min): light walking Aerobic training: mild-moderate intensity (40-60% of MHR) cycling or walk on treadmill/over ground Strength training: Exercises for major muscle groups (upper limb, lower limb and trunk) using body weight based on 1RM. Upper limb: upright row, shoulder press, bicep curls Lower limb: sit-to-stand, mini knee lifts, 3 steps calf raises Core: Seated abdominal contraction, back extension Perform 1-2 sets of 5-10 repetitions for each exercise, resting 1-2 mins between sets. Breathing exercise: pursed-lip breathing (1-3 sets of 5-10 reps) Cool down: (5-10min) Pharmacological management: Patient will receive medications as per prescribed by pulmonologist

Patients in this group will receive box breathing with short term pulmonary rehabilitation along with pharmacological management. A total 3 weeks protocol will be followed in which 2 sessions per week will be supervised by physiotherapist and box breathing will be performed daily. Patient will receive short term pulmonary rehabilitation including: Warm -up (5-7 min): light walking Aerobic training: mild-moderate intensity (40-60%of MHR) cycling or walk on treadmill/over ground. Strength training: Exercises for major muscle groups (upper limb, lower limb and trunk) using body weight based on 1RM. Upper limb: upright row, shoulder press, bicep curls Lower limb: sit-to-stand, mini knee lifts, 3 steps calf raises Core: seated abdominal contractions, back extensions Perform 1-2 sets of 5-10 repetitions for each exercise resting 1-2 min between sets. Breathing exercise: pursed-lip breathing (1-3 sets of 5 -10 repetitions) Cool down: (5-10 min) Box breathing: The patient will be instructed