Fig 1. Example data from a single person with TTA.

Tied baseline included walking with both treadmill belts at a slow speed (0.5 m/s) before and after a tied condition at a fast speed (1.5 m/s). During split adaptation the treadmill belts moved at either the slow or fast speed (3:1 speed ratio). Tied post-adaptation walking with both treadmill belts moving at the slow speed.