Fig 6. Illustration of the analyzed spatial gait parameters.

Subjects were asked to always start walking with their left foot. The first step length left and first stride length right (gray) were excluded from the analysis, since these are generally shorter than the steps during actual walking (acceleration phase). Subjects did not stop at the end of the track volume (finish) so that there was no slowing down. Depending on the subjects’ individual step lengths there might be an unequal number of left and right steps. Parameters are assigned to the left or right foot depending on which foot was last placed on the floor, e.g. the first step length and step width are assigned to the left foot.