COPD is the chronic lung condition characterized by the damage and enlargement of the air sacs in the lungs, leading to breathing difficulties. A blockage may develop, which traps air inside your lungs. The patient shows clinical manifestation of cough, wheezing, chest tightness, shortness of breath. This research of randomized clinical trial will check the combined effects of pursed lip breathing and coordinated breathing techniques to improve aerobic capacity and dyspnea in patients with COPD by taking sample of 54 patients through convenience sampling and randomly allocating them to two groups A and B out of which A will receive pursed lip breathing with aerobic exercise for 4 times per week for 4 week and duration will be 45-60 min, B will receive coordinated breathing with aerobic exercise for 4 times per week for 4 weeks. And duration will be 45-60 min.Pre and post training outcomes of aerobic capacity and dyspnea will be measured through Six minute walk test and dyspnea Borg scale, and Saint George respiratory questionnaire. The data will be analyzed through SPSS 21.

Inclusion Criteria:

• Age range 25 -45 years(5)
• Adult patient diagnosed with (chronic obstructive pulmonary disease) based on clinical and diagnostic criteria.
• Patient willing and able to participate in an pursed lip breathing and coordinated breathing exercise program
• Gender both male and female

Exclusion Criteria:

• Those who cognitive impairment that might affect their ability to comprehend and follow instructions
• Any contraindication to the use of pursed lip breathing or coordinated breathing exercise as determined by the health care provider.
• Individual with severe musculoskeletal limitations or other physical condition that may hinder the ability to perform exercise
• Individual who have experienced the recent exacerbation of COPD symptoms within past three month