Table 1 Baseline characteristics

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)