Figure 1: Single Task (Motor). Subjects walked on the split-belt treadmill continuously for 5 minutes while the belt speeds were changed. During the first 30 seconds both belts were moving at the fast speed, followed by a 30 second period where the belts were both moving at the slow speed, then a 3 minute period where the belts were split with the dominant leg moving at the fast speed, and non-dominant limb moving at the slow speed, and finally both belts were returned to the slow speed for 60 seconds.