
Gait abnormalities of COPD are not directly related to respiratory function
Keywords: انحراف معیار; COPD; chronic obstructive pulmonary disease; GOLD; global initiative for COPD; PaO2/FiO2; partial pressure of oxygen in arterial blood to the fraction of inspired oxygen; MMSE; Mini-Mental State Examination; BMI; body mass index; MRC; Medical Research Cou