Table 2.

Mean ± standard deviation and effect size (ES) as estimated by Cliff’s Delta of various symmetry indices.

Symmetry Index (SI)	Control Group	Post-stroke	ES
Gait symmetry based on spatiotemporal gait parameter
PathLength	0.54 ± 0.07	4.30 ± 5.69	−0.85 ***
StrikeAng	8.50 ± 4.53	35.78 ± 30.85	−0.79 **
LiftOffAng	3.78 ± 1.33	42.80 ± 37.27	−0.88 ***
MaxAngVel	6.31 ± 3.78	44.86 ± 39.23	−0.81 **
StanceRatio	3.06 ± 2.27	12.19 ± 8.06	−0.79 **
LoadRatio	22.36 ± 9.42	32.36 ± 22.06	−0.22
FootFlatRatio	5.99 ± 2.28	7.18 ± 4.98	−0.13
PushRatio	6.88 ± 3.67	25.76 ± 25.57	−0.71 **
Gait symmetry based on feet angular velocity signal profile
$\mathit{G}\mathit{S}{\mathit{I}}_{\mathit{c}\mathit{o}\mathit{r}\mathit{r}}$	0.97 ± 0.01	0.76 ± 0.24	0.85 ***
$\mathit{G}\mathit{S}{\mathit{I}}_{\mathit{d}\mathit{i}\mathit{s}\mathit{t}}$	6.84 ± 1.23	16.87 ± 7.70	−0.89 ***
Gait symmetry based on low back accelerometry
$GS{I}_{L3}$	0.74 ± 0.06	0.35 ± 0.22	0.89 ***
$GS{I}_{L3straight}$	0.69 ± 0.09	0.36 ± 0.19	0.89 ***

*** indicates p < 0.001, ** indicates p < 0.01.