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Table 1 Baseline characteristics

From: Nordic Walking improves daily physical activities in COPD: a randomised controlled trial

  total (n = 60), mean (±SD) Nordic Walking group (n = 30) control group (n = 30)
age, years 60.3 (8.45) 61.9 (8.87) 59.0 (8.02)
male sex, % 45 47 43
LTOT, n (%) 5 (8.3) 2 (3.3) 3 (5.0)
FEV1, % predicted 46.3 (17.6) 48.1 (19.1) 47.1 (16.3)
FEV1/FVC, % predicted 44.9 (10.7) 45.2 (11.6) 45.3 (10.5)
GOLD II, III, IV, (%) 27 (45), 14 (23), 19 (32) 13 (43), 7 (24), 10 (33) 14 (47), 7 (23), 9 (30)
BMI, kg/m2 26.2 (4.6) 25.9 (4.5) 26.5 (4.9)
6MWD, m 446 (140) 461 (154) 436 (128)
6MWD, % predicted 66.9 (19.6) 66.4 (22.1) 67.3 (17.3)
peak load, watts - 68.0 (24.1) -
peak load, % predicted - 54.6 (14.3) -
BORG score, points 4.3 (2.1) 4.4 (2.2) 3.9 (1.9)
HADS anxiety, ≥7 points 9.7 (3.8; n = 32) 8.8 (2.4; n = 15) 10.5 (3.6; n = 17)
HADS depression, ≥7 points 10.7 (3.2; n = 27) 9.9 (3.2; n = 12) 11.3 (3.1; n = 15)
SF 36 PCS, <50 points 32.0 (6.13; n = 53) 32.2 (6.50; n = 28) 31.7 (5.79; n = 25)
MCS, <50 points 40.9 (8.59; n = 30) 42.8 (7.41; n = 14) 39.2 (9.40; n = 16)
daily physical activities    
   movement intensity, m/s2 1.55 (0.39) 1.59 (0.47) 1.50 (0.29)
   walking, min/day 44.5 (35.6) 46.7 (35.2) 42.3 (36.5)
   standing, min/day 218 (138) 215 (182) 222 (169)
   sitting, min/day 348 (200) 334 (208) 362 (195)
   lying, min/day 106 (118) 123 (138) 88.7 (91.5)
  1. SD, standard deviation; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; BMI, body mass index; 6MWD, six-minute walking distance; BORG, BORG dyspnoea score after 6MWT; HADS, Hospital Anxiety and Depression Scale; SF 36, Short Form 36; PCS, Physical Component Score; MCS, Mental Component Score; min/day, minutes per day.
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