Fifteen subjects in experimental group I that
respiratory exercise of diaphragm and 15 subjects in experimental group II that feedback respiratory exercise were
randomly selected among COPD patients to find the effective intervention method for COPD patients. And intervention
program was conducted for 5 weeks, three times a week, once a day and 30 minutes a session. They were
measured with BODE index using respiratory muscle activity, pulmonary function, the six-minute walking test,
dyspnea criteria and BMI Then the results obtained were compared and analyzed.