Win et al. [8] investigated the consequences of lung resection on pulmonary function in patients with lung cancer. She showed that pulmonary resection produces sharp declines in FVC and FEV1 1 month after surgery, and slow recovery was observed until 3 months after lung resection. FVC and FEV1 rarely improved subsequently. Funakoshi et al. [9] also studied the long-term effects of lobectomy on patients with lung cancer. He revealed an upswing in reduced FVC and FEV1 values 12 months after surgery but no significant statistical improvement in pulmonary function was detected. Thus, we used a 6-month follow-up period to verify the effects of systemic pulmonary rehabilitation.