Figure 1.

Representations of the task in the real and virtual stage. (A) Real scenario (raising the foot to a step); (B) virtual scenario that the patient could view on the screen. The red line represents the ideal trajectory, whereas the yellow lines indicate the patients’ trajectory in the different trials. Simultaneous visual-auditory feedback was provided to the patients during the execution of the movements. In addition, the physiotherapist provided feedback to the patients to enhance their performance.