Table 1.

Definitions of the five parameters used in the Enhanced Gait Variability Index calculation.

Parameters	Definition
Gait velocity	Sum of all stride lengths divided by the sum of all stride times (m/s)
Step length	Distance between successive heel points of opposite feet, measured parallel to the direction of progression (m)
Step time	Time take between the first contact of one foot to the first contact of the following contralateral foot (s)
Stance time	Time when foot is in contact with the ground (s)
Single support time	Time when only the evaluated foot is in contact with the ground without contact from the contralateral foot (s)

Note: based on Huxham et al. [17].