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Background/Purpose Chronic obstructive pulmonary disease (COPD) is a respiratory disease that results in pro-gressive airflow limitation and respiratory distress. Physiopathological features of COPD suggest that people who suffer from this disease have many risk factors for falls that have been identified in older individuals. The aim of the study was to compare and quantify func-tional balance between COPD patients and healthy subjects; to investigate the risk of falls in acute stages of the disease and to identify risk factors that could lead to falls. Methods We studied 46 patients with moderate-severe COPD (29 stable and 17 in acute exacerba-tion- AECOPD) and 17 healthy subjects (control group) having similar demographic data. We analyzed the difference in Berg Balance Scale (BBS), Single Leg Stance (SLS) and Timed Up and Go test (TUG) between these three groups and the correlation of these scores with a number of incriminatory factors. Results The presence of COPD was associated with significant worsening of balance tests: BB