Fig. 1.

Representative image of gait assessment. The subjects were asked to walk on the GAITRite carpet n various conditions; (A) usual walk, walk to their own pace; (B) fast walk, walk to their maximum speed, not running; (C) verbal dual task, walk while saying the highest possible number of words beginning with a letter referred by the operator right before the beginning of the trial; (D) obstacle crossing task, walk crossing an obstacle placed 3 m from the start of the mat. The order of the task was randomly assigned