Beneficial Effect of Pulmonary Rehabilitation in Lung Cancer Patients Receiving Radiation Therapy

It is important for clinicians to maintain and support for exercise capacity and quality of life of lung cancer patients after radiation therapy, because radiation therapy also affect the lung function and general conditions of patients. The effect and safety of pulmonary rehabilitation is well-proven in various diseases. Because there is no standard treatment, the investigators will perform this study to clearly prove the effect of pulmonary rehabilitation in lung cancer patients receiving radiation therapy.