Table 2.

Effect of Active versus Sham Stimulation on Motor Behavior

nFOG-Q
	Timepoint	Active (mean ± SD)	Sham (mean ± SD)
	Baseline	21.42±2.74	19.88±4.88
	Post	16.58±6.79	18.13±5.93
	1 Month F/U	18.22±4.92	18.43±6.08
	2 Month F/U	16.75±6.30	16.33±6.77
	3 Month F/U	18.13±7.77	13.75±10.81
UPDRS-III score
	Timepoint	Active	Sham
UPDRS-III (ON)	Baseline	16.82±4.12	15.75±5.97
	Post	12.73±5.46	17.13±8.43
UPDRS-III (OFF)	Baseline	25.08±7.01	25.38±10.25
	Post	22.08±7.30	22.88±8.94
Time to Turn (seconds)
	Timepoint	Active	Sham
Single Task (ON)	Baseline	7.40±4.35	7.42±4.58
	Post	6.52±4.76	6.89±2.42
Single Task (OFF)	Baseline	13.30±10.08	37.63±83.38
	Post	8.68±6.52	8.92±5.07
Dual Task (ON)	Baseline	10.37±8.31	30.14±54.24
	Post	12.10±20.72	10.91±7.61
Dual Task (OFF)	Baseline	25.58±36.09	17.12±13.65
	Post	13.53±17.22	11.25±7.53
Spatiotemporal Measures
Measure	Timepoint	Active	Sham
Velocity (ON)	Baseline	105.68±21.38	100.46±20.16
	Post	105.81±21.03	93.99±19.17
Velocity (OFF)	Baseline	89.62±37.96	74.81±37.93
	Post	95.17±19.62	88.20±25.01
Cadence (ON)	Baseline	117.35± 10.41	108.76±16.95
	Post	119.51±9.89	108.46±14.53
Cadence (OFF)	Baseline	114.11±11.95	91.70±26.01
	Post	119.21±9.42	103.61± 10.12