Table 3.

Mean and standard deviation of the gait measures in the two groups

		Healthy Controls (HC)	PD ON	PD OFF	Effect Size & p-value
					HC vs PD ON	HC vs PD OFF	ON vs OFF
SPARC	Acc	-5.17 ± 0.79	−6.11 ± 0.74	−6.74 ± 0.64	1.25 (<  0.001)	2.29 (0.001)	<  0.001
	V	− 5.08 ± 0.74	− 5.22 ± 0.78	− 5.74 ± 0.88	0.17 (0.107)	0.78 (0.001)	<  0.001
	AP	−5.57 ± 0.74	−5.80 ± 0.80	− 6.44 ± 0.77	0.30 (0.190)	1.14 (0.001)	<  0.001
	ML	− 5.44 ± 0.32	−5.60 ± 0.48	−5.96 ± 0.50	0.35 (0.388)	1.13 (0.005)	<  0.001
	Gyr	−4.87 ± 0.55	−5.00 ± 0.52	−5.43 ± 0.53	0.25 (0.156)	1.06 (<  0.001)	<  0.001
	Yaw	−5.96 ± 0.81	−5.92 ± 0.85	−6.47 ± 0.82	− 0.05 (0.037)	0.63 (0.002)	<  0.001
	Roll	− 5.80 ± 0.73	−5.97 ± 0.60	−6.51 ± 0.70	0.26 (0.229)	1.01 (0.007)	<  0.001
	Pitch	−6.28 ± 0.75	−6.55 ± 0.86	− 7.09 ± 0.91	0.32 (0.365)	0.94 (0.002)	<  0.001
Harmonic ratios	V	3.10 ± 0.90	2.75 ± 0.82	2.95 ± 0.85	0.42 (0.998)	0.17 (0.092)	<  0.001
	AP	2.08 ± 0.48	2.04 ± 0.74	2.54 ± 0.93	0.06 (0.800)	− 0.55 (0.240)	<  0.001
	ML	0.60 ± 0.11	0.56 ± 0.09	0.52 ± 0.08	0.33 (0.002)	0.89 (<  0.001)	<  0.001
Mean Gait Speed	–	1.18 ± 0.24	1.16 ± 0.20	1.13 ± 0.19	0.05 (0.028)	0.21 (0.008)	0.117
Stride Time	Mean	1.04 ± 0.06	1.09 ± 0.09	1.09 ± 0.09	− 0.62 (0.048)	− 0.53 (0.365)	0.550
	Variability	3.43 ± 1.17	4.72 ± 3.05	5.84 ± 4.92	− 0.48 (0.044)	− 0.57 (0.055)	0.826

Note: Significant results are displayed in bold

Analysis was also performed without controlling for weight which did not modify the outcomes