Inclusion Criteria:  Age group of 40 to 70 years.  Both male and females will be included. Patients with a diagnosis of PH (PAPm ≥ 25mmHg and PAOP <15mmHg); Clinically stable with augmented and unchanged daily medication therapy in the last three months; Subjects who agree to contribute in the research by signing a free and knowledgeable consent form.  Exclusion Criteria:  COPD Severe ischemic heart disease Left heart failure; Cor pulmonale Cognitive disorders; Orthopedic problems; e.g;fracture in thoracic region. Emergency or elective surgical intervention during the protocol; Recent viral infections;