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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Neurorehabil Neural Repair. 2015 Jan 14;29(8):786–795. doi: 10.1177/1545968314567149

Figure 3.

Figure 3

Spatial and temporal contributions to step length asymmetry during adaptation to walking on a split-belt treadmill. Group averages of the stride-by-stride values for the step velocity (green), step position (gold), step time (purple), and net (red) contributions for the a) 2:1 group and b) 3:1 group. The horizontal dashed line indicates a contribution of zero. Error bars represent the average of each contribution during the first five steps of adaptation and the last 20 steps of adaptation. Shaded areas surrounding each line represent standard errors across subjects. The difference in belt speeds causes a large asymmetry in the step velocity contribution (green) and this is gradually offset by changes in the step position (gold) and step time contributions (purple). The sum of each contribution gives the actual difference in step lengths (red). c) Average contributions for each belt speed ratio. #: significant differences across speed ratios. *: significant differences in contribution size.