Figure 4.

One leg standing on left (left) and right leg (right). Boxplot before (pre) and after (post) 3 month ambulatory intervention and follow-up 6 (fup1), 9 (fup2) and 15 months (fup3) following beginning of the study. n = number of patients; significant differences * p < 0.05 and ** p < 0.01 compared with pre.