Table 3 Mean (SD) outcomes at week 0, 8, 26 and mean (95% CI) difference between time points

Physical activity

Accelerometry (steps/day)

3024 (1955)

5773 (2943)

6664 (3371)

2749 (933 to 4564)

3640 (1734 to 5545)

Walking distance

6-min Walk Test (m)

277 (142)

368 (144)

402 (141)

110 (23 to 196)

125 (40 to 210)

Walking speed

10-m Walk Test (m/s)

0.72 (0.29)

0.99 (0.36)

1.01 (0.33)

0.24 (0.05 to 0.42)

0.33 (0.17 to 0.50)

Cardiorespiratory fitness*

VO₂ peak (ml/kg/min)

11.0 (3.3)

n = 14

13.6 (3.3)

n = 20

14.9 (4.1)

n = 24

2.2 (− 0.2 to 4.5)

n = 6

4.7 (1.8 to 7.5)

n = 6