Fig. 7

Ankle clearance over training during Session 1. (a) Sagittal plane paretic-leg ankle trajectory of example stroke patient prior to training (No Feedback 1, blue) and during late training (Feedback 5, red). Nonparetic leg during mid-swing of the paretic leg is drawn in black. Notice the increased clearance during mid-swing as well as the cleaner heelstrike during late training (b) Average ankle marker clearance (defined as the mean vertical position of the ankle from mid-swing to heelstrike) over training. The dashed black line is a linear fit calculated by a least-squares linear regression. This line can be described by y = 0.158*x + 151.223 (R² = 0.447, p < 0.001). Each trial on the x-axis corresponds to 30 s of walking (approx. 25 strides). Error bars denote SEM