Health subject  Inclusion Criteria:  aged 20 years or above currently not being diagnosis as COPD less than 4 times/week of aerobic exercise  COPD-like subject  Inclusion Criteria:  aged 20 years or above currently not being diagnosis as COPD presented of COPD symptoms (coughing, sputum production and dyspnea), last for 3 months and more than 2 years score more than 1 on modified Medical Research Council (mMRC) or COPD Assessment Test (CAT) COPD subject  Inclusion Criteria:  aged 20 years or above currently being diagnosis as COPD haven't participated in any pulmonary rehabilitation program in the past three months  Exclusion Criteria:  Untreated comorbidities for COPD Postural asymmetries (Scoliosis, length discrepancy of the lower limbs or other previous surgical history of spine) Chronic nonspecific lumbopelvic pain Gynecological or abdominal surgery in the previous year Pregnancy or post-delivery in the previous 6 months Neurological or inflammatory disorders Any conditions that may interfere with the data collection