Physical activity in patients with chronic obstructive pulmonary disease
نویسندگان
چکیده
We aimed to measure physical activity in patients with COPD, to identify the disease stage at which physical activity becomes limited, to investigate the relationship of clinical characteristics with physical activity, to evaluate the predictive power of clinical characteristics identifying very inactive patients, and to analyze the reliability of physical activity measurements. 163 patients with COPD (GOLD I –IV; BODE 0 –10) and 29 patients with chronic bronchitis (normal spirometry; former GOLD stage 0) wore activity monitors that recorded steps per day (SPD), minutes of at least moderate activity (MMA), and physical activity levels (PAL) for 5 days (3 weekdays, 1 weekend). Compared to patients with chronic bronchitis SPD, MMA, and PAL were reduced from GOLD stage II/BODE score 1on, from GOLD stage III/BODE score 3/4 on, and from GOLD stage III/BODE score 1 on, respectively. Reliability of physical activity measurements improved with the number of measured days and with higher GOLD stages. Moderate relationships were observed between clinical characteristics and physical activity. GOLD stages III and IV predicted best very inactive patients. Physical activity is reduced in patients with COPD from GOLD stage II/BODE score 1 on. Clinical characteristics of patients with COPD only incompletely reflect their physical activity.
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