Characterization of gait kinematics for PD groups and Control in absence of stimulation.

Values: Mean, (±sd), median, [range]. Units: (m/s) = meters/second; (m) = meter; (steps/s) = steps/second; (s) = seconds; (n.s) = not significant. Median and range are shown for variables not matching normality. F value for One-Way ANOVA is reported, along with comparisons between groups when significant effect is displayed. For Turning Time, given its non-parametric nature KW test was performed, and subsequent Mann-Whitney test to compare difference between groups. Velocity, step length and turning time were impaired in PD with regards to Controls, and also PD+FOG presented greater degree of impairment than PD-FOG.