Fig. 4

a Mean daily step count was moderately positively correlated with the observed change in 10MWT walking speed. The number of daily steps was recorded with a wrist-worn step counter during daily activities between training sessions. b The participants’ age was moderately negatively correlated with the observed change in 10MWT walking speed. P3 (green triangle) showed the largest increase in 10MWT speed, was the most active during daily life, and the youngest of all participants