Quantifying Gait Impairment Using an Instrumented Treadmill in People with Multiple Sclerosis

Table 3

Bivariate correlations (Spearman’s rho) among gait spatiotemporal parameters in persons with MS (𝑛=87).

Treadmill gait variables	EDSS	Pyramidal	Cerebellar
Velocity (km/h)	−0.52*	−0.46*	−0.34*
Cadence (steps/min)	−0.30*	−0.24^*†	−0.23*
Step time R (sec)	0.31*	0.22^*†	0.29*
Step time L (sec)	0.26*	0.23^*†	0.21^*†
Step length R (cm)	−0.51*	−0.46*	−0.30*
Step length L (cm)	−0.52*	−0.48*	−0.34*
Stance R (% GC)	0.58*	0.58*	0.38*
Stance L (% GC)	0.63*	0.56*	0.47*
Single support R (% GC)	−0.63*	−0.56*	−0.47*
Single support L (% GC)	−0.58*	−0.58*	−0.38*
Double support (% GC)	0.65*	0.61*	0.44*
Stride time (sec)	0.31*	0.25^*†	0.24^*†
Stride length (cm)	−0.52*	−0.47*	−0.32*
Base of support (cm)	0.35*	0.29*	NS
A-P variability (mm)	0.55*	0.49*	0.44*
Lateral symmetry (mm)	0.34*	0.42*	0.24^*†
Lateral variability (mm)	0.56*	0.50*	0.45*

∗Correlation is significant at the 0.01 level (2-tailed). ^*†Correlation is significant at the 0.05 level (2-tailed); NS: nonsignificant.