Effect of Liuzijue Qigong Exercises on Ventilatory Function in Post Stroke Elderly Patients

Inclusion criteria: All patients included in this study met the following criteria: 1. Subject people of both sexes (18 women, and 17 men). 2. All patients had unilateral stroke. 3. Their age ranged from 60 to 80 years old. 4. Stroke onset was from 6 to 1 months. 5. Medically stable subjects. 6. Non-smoker subjects. 7. Ability to understand and follow simple verbal instructions. Exclusion criteria: Patients who experienced or had one or more of the following were excluded from the study: 1. Patients with severe acute illness. 2. Chronic unstable pulmonary and/or cardiac disease. 3. Impaired level of consciousness and evidence of gross cognitive problems. 4. Patients undergo chemotherapy. 5. Active hemoptysis, untreated pneumothorax, recent esophageal surgery. 6. Recent oral, facial or skull trauma / surgery, acute sinusitis, epistaxis, hemodynamic instability. 7. Current Smokers. 8. Patients had a severe psychological disorder.