Correlation between the differences from baseline to 8-weeks follow-up of the FAB scale with the differences from baseline to 8-weeks follow-up of other outcomes.

BDI, Beck Depression Inventory; FAB, Fullerton Advanced Balance; TUG, Timed-Up-and-Go-Test; LAS, less affected side; MAS, more affected side; MVC, maximal voluntary contraction; PCI, Phase Coordination Index; PDQ-39, Parkinson’s Disease Questionnaire; RFD, rate of force development; UPDRS, Unified Parkinson’s Disease Rating Scalea Spearman’s rank correlation coefficientb value represents the area under the curve of the normalized vector length from 0–3 sec after the surface perturbation (see Fig 2 and S3 File)c blinded video rating, without item 22 (rigidity).Correlation between the differences from baseline to 8-weeks follow-up of the FAB scale with the differences from baseline to 8-weeks follow-up of other outcomes.