TABLE 1.

Demographic, gait, and neuropsychological characteristics of the study group.

	Variable
Demographics	Age (all group), n = 115	60.45 ± 13.75
	Gender
	- Females, n = 64 (55.7%)
	- Males, n = 51 (44.3%)
	IQ	118.84 ± 8.13
	Years of education	16.19 ± 2.12
Neuropsychological performance (domain z-scores)	Processing speed	-0.08 ± 0.82
	Vocabulary	0.26 ± 0.82
	Episodic memory	-0.04 ± 0.97
	Fluid reasoning	-0.12 ± 0.73
Gait	UW velocity (m/s)	0.96 ± 0.18
	UW stride length (m)	1.2 ± 0.23
	UW stride regularity	0.76 ± 0.11
	UW step symmetry	0.81 ± 0.23
	UW step regularity	0.63 ± 0.16
	DT velocity (m/s)	0.84 ± 0.13
	DT stride length (m)	1.15 ± 0.16
	DT stride regularity (a.u)	0.61 ± 0.19
	DT step symmetry (a.u)	0.55 ± 0.19
	DT step regularity (a.u)	0.92 ± 0.34

Unless otherwise specified, all values are expressed as Mean ± SD. IQ, intelligence quotient; UW, usual walking; DT, dual-task; a.u, arbitrary unit.