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Table 1 Baseline characteristics

From: The effects of a physical activity counseling program after an exacerbation in patients with Chronic Obstructive Pulmonary Disease: a randomized controlled pilot study

  Control group (N = 15) Intervention group (N = 15) P-value
Demographic characteristics   
 Age (years) 68 ± 6 66 ± 7 0.34
 BMI (kg/m2) 29 ± 5 25 ± 9 0.20
 Gender (male (N (%)) 9 (60) 8 (53) 0.71
Pulmonary function   
 FEV1 (% predicted) 48 ± 18 38 ± 17 0.11
 Tiffeneau Index (%) 47 ± 13 41 ± 14 0.28
Peripheral muscle strength   
 QF (Nm) 112 ± 28 84 ± 42 0.05
 QF (% predicted) 85 ± 43 71 ± 38 0.38
Functional exercise capacity   
 6MWD (meter) 317 ± 95 235 ± 134 0.07
 6MWD (% predicted) 53 ± 16 36 ± 18 0.01
 Stops during 6MWD (amount) 0.66 ± 0.62 1.23 ± 0.92 0.15
 Duration of stops (s) 38 ± 48 81 ± 61 0.08
Physical activity  
 PAsteps (amount/day) 1557 ± 1319 1644 ± 2751 0.93
 PAwalk (minutes/day) 20 ± 17 22 ± 35 0.90
 PAint (m/s2) 1.34 ± 0.50 1.46 ± 0.25 0.50
Questionnaires  
 mMRC (points) 2 [2–3] 3 [2–3] 0.39
 CAT (points) 19 [15–22] 25 [13–28] 0.42
  1. BMI body mass index, FEV 1 forced expiratory volume in 1 s, QF quadriceps strength, 6MWD six minutes walking distance, PAsteps daily amount of steps, PAwalk daily walking time, PAint movement Intensity during walking, mMRC modified medical research council dyspnea scale, CAT COPD assessment test. Data are expressed as mean ± SD, median [IQR] or as N (%). p < 0.05