Fig. 10

Percentage of steps taken outside of baseline walking pattern. (a) Calculation of percent improvement metric for sample stroke patient. Blue ellipse corresponds to a 95% confidence ellipse for baseline (No Feedback 1) paretic hip and knee flexion angles. Parallel teal lines denote combinations of paretic hip and knee flexion angles that represent the same deviation from the goal PC. Steps in subsequent training blocks are marked with an ‘x’ if outside of the baseline ellipse and closer to the goal PC. Steps in subsequent training blocks are marked with an ‘o’ if inside of the baseline ellipse or further from the goal PC. The inset displays steps around the border of the baseline ellipse to highlight this separation. (b) Percent improvement for stroke-to-control (purple) and control-to-stroke during Session 1 of training. (c) Percent improvement for stroke-to-control (purple) and control-to-stroke during Session 2 of training. Shaded regions in (b) and (c) correspond to blocks in which participants received visual feedback while walking. Error bars denote SEM