Fig. 1

Plots for PD subjects on the three outcome measures over time. For the spaghetti plots of MDS-UPDRS subscales I (a) and II (b), each solid line in red represents each PD subject and the dots show the measurement at each visit. For the Box plots of imbalance (c), each column corresponds to each visit, and the two areas (white and red) within each of the columns correspond to the proportion of the corresponding imbalance categories (Yes/No)