The subjects of this study were outpatients at N Hospital in Daegu who had been diagnosed with scoliosis and agreed to participate in the study. From 57 scoliosis patients’ chest and waist X-ray results, 43 patients were identified with between 10 and 20 degrees of Cobb’s. Of these, 40 patients who were willing to participate and met the study requirements took part in the experiment. The inclusion criteria were absence of any special lung diseases before scoliosis, no congenital chest deformation or rib fracture, and the ability to sit independently. All the subjects understood the purpose of this study and provided their written informed consent prior to their participation in the study, in accordance with the ethical standards of the Declaration of Helsinki.