Journal
REVISTA PORTUGUESA DE PNEUMOLOGIA
Volume 20, Issue 3, Pages 131-137Publisher
ELSEVIER DOYMA SL
DOI: 10.1016/j.rppneu.2013.09.004
Keywords
Chronic obstructive pulmonary disease; Activities of daily living; Pedometer
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Introduction: Chronic obstructive pulmonary disease (COPD) is a disease with great impact on the ability to carry out physical activity. Objective: To identify the main factors that affect physical activity in the daily life of patients with COPD. Methods: Physical activity in daily routine has been evaluated according to the London Chest Activity of Daily Living scale (LCADL) and the pedometer counting the number of steps per day, for a period of three days. Fifty-five male patients with a diagnosis of moderate to very severe COPD were included (aged 67 +/- 9.6 years; FEVi 50.8 +/- 14.7% predicted). Results: Patients walked on average 4972 steps per day. Very severe COPD patients (n=12) walked much less than severe (n=21) and moderate (n=22) patients (respectively 3079.8 versus 4853.5 and 6118.1 steps per day, p < 0.001). The number of steps per day had a negative correlation with age, dyspnea (mMRC), depression, BODE index and pulmonary hyperinflation; and a positive correlation with the distance covered in the six-minute walk test (6MWT), forced expiratory volume in the first second (FEV1), carbon monoxide diffusion capacity (DLCO), arterial oxygen saturation (SpO(2)) and body mass index (BMI). Conclusions: The main factors that correlated with limited physical activity in daily life routine of this group of COPD patients were dyspnea and 6 min walking distance. These patients form a sedentary group, with a low rate of daily physical activity, which is more evident in patients with GOLD spirometry stage IV. Although pedometer is simpler and less accurate than other devices, it can be used to detect significant restraints daily life physical activity of COPD patients. (C) 2013 Sociedade Portuguesa de Pneumologia. Published by Elsevier Espana, S.L. All rights reserved.
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