Table 3. Comparison of gait parameters for the most and least affected sides in the in PD-GBA and non-GBA in the OFF-medication condition and healthy controls.

		PD-GBA	Non-mutation carriers	Healthy Controls	p-value
Arm swing velocity (degrees/s)	Most affected	156.6 ± 62.2	110.9 ± 69.7	168.6 ± 48.4	0.059+
	Least affected	155 ± 38.8	140.5 ± 38.7		0.299+
	p-value	0.929	0.148
Arm range of motion (degrees)	Most affected	31.4 ± 15.4	15.7 ± 7.1	39.8 ± 15.0	0.001+
	Least affected	33.1 ± 11.6	29.7 ± 12.8		0.430+
	p-value	0.725	0.001
Stride length (m)	Most affected	1.1 ± 0.1	1.0 ± 0.18	1.2 ± 0.11	0.406+
	Least affected	1.1 ± 0.11	1.0 ± 0.2		0.060+
	p-value	0.508	0.630

Gait parameters and their asymmetry in PD-GBA vs. non-GBA subjects for most and least affected sides in the OFF state. Mean of both body sides were calculated in controls.

⁺:p-values are comparing GBA carriers and non-GBA carriers; GBA = glucocerebrosidase.