Robotics for Recovery - Wheelchair training

The rehabilitative benefits of functional movements in the rehabilitation of neurological injuries are clear. Some of the most functional movements for a new wheelchair user are the actual use of the wheelchair. However, the use of a wheelchair on varied terrain and conditions cannot be replicated currently in a stationary therapy environment. Nor is a therapist able to gauge, measure, and track, patient progress. By effectively developing and combining the discrete technologies of motion simulation, electromyography, and functional electrical stimulation, a therapy device can be created which (1) allows a wheelchair user to safely experience the full range of grade, camber, and conditions encountered in the real world in a stationary environment, (2), can measure and provide feedback on patient performance and specific neuromuscular activation, and (3) provide specific electrical assistance for muscle activation to improve performance and foster patient capability development.

The motion platform technology to be incorporated will safely position the user and their wheelchair on a platform that will roll and pitch, and which will include a dynamometer to provide independent resistance or acceleration to each of the wheelchair’s drive wheels. The dynamometer will also provide position synchronized data capture enabling therapist to determine in which conditions patient performance is weakest, and to track patient progress over time.

The incorporation of synchronized electromyograph sensors will illuminate muscle activation, and can identify undesired or desired attempted compensatory strategies. The real time measurement of activation signals is to also provide enhanced muscular performance through incorporation with functional electrical stimulation.

The inclusion of functional electrical stimulation, triggered from (1) measured electromyograph signals, (2) motion platform position and dynamometer measured effort information, and (three) therapist manual activation, will directly tied together functional movements, measured effort, and patient effort. It will also be able to provide enhanced core stability (by manually activating core muscles) for grade and camber training.