IMT is a therapeutic approach designed to improve respiratory muscle strength and endurance. In this trail, participants will engage in a structured regimen of inspiratory exercises with high resistance.

participants will perform inspiratory muscle exercises using the power-breathe device that provide intermediate to high resistance, with focus on both intensity and volume. The protocol involves 4 to 5 session per week.

Participant will engage in a structured training that involving Thera-band resistance training. Participants use different color of thera-band that provides different resistance. The regimen includes 3 session per week using different colors of band.

IMT with device group is trained twice daily, with the morning session and afternoon session. The intensity will increase progressively in this group, starting at 60% Maximal Inspiratory Pressure (MIP) and reaching 75% by the end of study. POSITION: Patient will be in sitting position. FREQUENCY: 4 TO 5 times per week. INTENSITY: 60 to 75% of MIP (gradually increment the load by 10%every 2 weeks to reach 75 to 80 %MIP). Time: 15 to 20 minutes.

peak expiratory flow rates measured through digital spirometer.3 zones of measurements are commonly used to interpret peak flow rates. Normal value of PEFR is 80 to 100%.Green zone indicates 80 to 100% normal peak flow reading, yellow zone indicates 50 to 79 %of normal peak flow readings, and red zone indicates less than 50% of normal peak flow reading.

Forced Vital Capacity (FVC) Forced vital capacity (FVC) measured through digital spirometer. If the value of FVC is within 80% of the reference value, the results are considered normal. Changes in FVC from baseline to 3rd week and after 6 weeks day of intervention will be assessed.

Forced expiratory volume in 1sec (FEV1) measured through digital spirometer. If the value of FEV1 is within 80% of the reference value, the results are considered normal.