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Forest plot of comparison: disorder type – Parkinson’s disease. Freezing of gait: change in scores (FOG Questionnaire). Non-standardized gait analysis: change in gait speed (Arias 2010 ON medication state (first entry), m/s; Arias 2010 OFF medication state (second entry), m/s; Ma 2019, reduction in time-to-complete (s)). TUG: Timed Up-and-Go test: reduction in time to complete (s). 95% CI: 95% confidence interval; SD: standard deviation (26, 45, 46).
