Table 5 Validation analysis in subgroups with and without CST structural lesions.

From: Gait instability is a more specific predictor of corticospinal tract function than gait speed in clinically stable multiple sclerosis

Predictive model

Total Sample

CST Lesion Subgroup

CST No-Lesion Subgroup

R 2

R 2

R 2

SS COP Distance (cm) - AMT

0.258*

0.254*

0.444*

Total Double Support (%) - eREC

0.133*

0.210*

0.037

Stride Width (cm) - iREC

0.063*

0.431*

0.137*

Stride Time (sec) - iREC

0.305*

0.230*

0.429*

  1. AMT: active motor threshold; eREC: excitatory motor evoked potential recruitment curve; iREC: inhibitory motor evoked potential recruitment curve; cm: centimeter; sec: seconds; SS: single support; COP: center of pressure; CST: corticospinal tract; R2: coefficient of determination; p: confidence interval *p < 0.05.
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