In an attempt to improve motor recovery of the upper limb after stroke, we
added a robot (MIT-Manus) experience that provided additional goal-directed
sensorimotor activity to standard rehabilitation treatments. The first tri
al produced a significant decrease in motor impairment in the upper limb fo
r the treated group. In re-evaluating 12 of those 20 patients, nearly 3 yea
rs later, robot-trained patients showed further significant decreases in im
pairment measures of the affected limb. The groups were comparable at the s
tart of the study.