Figure 4. Relation of gait-related parameters to preferred speed.
(A and B) Angular velocity at toe-off and SSD (shape difference to normal) showed linear relations to walking capacity and separated the two groups. (C and D) The degree of spinal cord integrity did not correlate with walking capacity but clearly distinguished the two groups. (E and F) Ranges of motion showed weak to moderate relation to walking capacity and does not distinguish between groups. A linear fit was added to the graphs (dotted lines) to illustrate trends although Spearman’s correlation does not assume linearity of data. AngVel = angular velocity at toe-off, MEP = motor evoked potential, ROM = range of motion, SSD = sum of squared distances (cyclogram shape difference), SSEP = somatosensory evoked potential, TA = tibialis anterior, TP = tibialis posterior.