Table 2 Self-reported physical activity, accelerometry measured physical activity, physical fitness and psychological well-being at baseline

Self-reported physical activity

 Physical Activity Index (PAI)

2.90 (2.64)

2.56 (2.40)

3.27 (2.85)

 Inactive (PAI 0–0.04)

44 (19.3%)

24 (20.3%)

20 (18.2%)

 Low physical activity (PAI

 0.05–1.5)

49 (21.5%)

30 (25.4%)

19 (17.3%)

 Medium physical

 Activity (PAI 1.51–3.75)

81 (35.5%)

43 (36.4%)

38 (34.5%)

 High physical activity (PAI

 3.76–15)

54 (23.7%)

21 (17.8%)

33 (30%)

Accelerometry measured physical activity

 Cpm (counts per minute)

286.9 (105.2)

274.8 (106.6)

299.9 (102.9)

 Sedentary time (minutes/day)

655.3 (86.3)

663.2 (87.9)

646.9 (84.3)

 Light physical activity

 (minutes/day) |

185.6 (53.6)

188,1 (53.4)

183.0 (54.0)

 Moderate physical activity

 (minutes/day)

37.6 (19.6)

36.9 (20.6)

38.4 (18.6)

 Vigorous physical activity

 (minutes/day)

1.2 (3.3)

0.9 (1.8)

1.6 (4.3)

Cardiorespiratory exercise testing

 VO_2peak (ml/kg/min)

29.1 (6.4)

29.0 (6.7)

29.2 (6.1)

 VO_2peak (l/min)

2.66 (0.8)

2.66 (0.7)

2.67 (0.8)

 RER_peak

1.19 (0.10)

1.17 (0.09)

1.21 (0.11)

 VO_2peak (ml/kg/min), men

31.7 (5.6)

32.0 (5.7)

31.4 (5.4)

 VO_2peak (l/min), men

3.15 (0.6)

3.12 (0.5)

3.19 (0.7)

 VO_2peak (ml/kg/min),

 women

25.2 (5.5)

24.0 (4.8)

26.3 (5.8)

 VO_2peak (l/min), women

1.95 (0.3)

1.91 (0.3)

1.98 (0.3)

Psychological well-being

 WHO-5 standardized %-

 score

61.8 (17.9)

58.8 (18.1)

65.0 (17.2)