Table 2.

Basic gait behavior measures for three experimental groups.

Gait Measure	Control Group	Low Fall Risk Hemiparetic Group	Higher Fall Risk Hemiparetic Group	p-Value
Self-Selected Overground Walking Speed (m/s)	1.31 ± 0.20*	0.96 ± 0.11	0.79 ± 0.26	<0.001
Analyzed Treadmill Walking Speed (m/s)	1.06 ± 0.14	0.98 ± 0.24	1.03 ± 0.26	0.21
Mediolateral Foot Placement (%LL)	11.3 ± 2.0	—	—	<0.001
Both Limbs	11.3 ± 2.0	—	—	—
Nonparetic Limb	—	9.7 ± 1.9	11.0 ± 2.3	—
Paretic Limb	—	11.8 ± 2.7	16.9 ± 4.1*	—
Analyzed Steps (n)	3,037	—	—	NA
Nonparetic Limb	—	707	481	—
Paretic Limb	—	705	481	—

Note: Data are reported as mean ± standard deviation where appropriate. For control group, 57 total walking trials were performed between 0.8 and 1.2 m/s, meeting our walking speed requirement, and were included in analysis. For low fall risk group, 16 self-selected speed trials and 13 fastest-comfortable speed trials met walking speed requirement. For higher fall risk group, 13 self-selected speed trials and 9 fastest-comfortable speed trials met this requirement. Where reported, p-values were calculated using analysis of variance.

^*Indicates value significantly larger than all other comparison groups (p < 0.05, Tukey post hoc test).

%LL = percentage of lower-limb length, NA = not applicable.