Abstract: A system and method for improving stability of a wheelchair user includes a wheelchair having sensors measuring motion parameters to sense collisions and sharp turns which may unseat the user. Neuromuscular stimulating electrodes attached to extensor and flexor muscles of the user's trunk and under the command of a controller in communication with the sensors activate the muscles during turns and collisions to counteract the forces induced. A system and method for increasing manual propulsion efficiency includes sensors for sensing motion parameters indicating completion of a manual push of the wheelchair wheels and recovery from the push. Neuromuscular stimulating electrodes attached to extensor and flexor muscles of the user's trunk and under the command of a controller in communication with the sensors activate the muscles at the appropriate time in the cycle of push and recovery.

Abstract: A system and method for improving stability of a wheelchair user includes a wheelchair having sensors measuring motion parameters to sense collisions and sharp turns which may unseat the user. Neuromuscular stimulating electrodes attached to extensor and flexor muscles of the user's trunk and under the command of a controller in communication with the sensors activate the muscles during turns and collisions to counteract the forces induced. A system and method for increasing manual propulsion efficiency includes sensors for sensing motion parameters indicating completion of a manual push of the wheelchair wheels and recovery from the push. Neuromuscular stimulating electrodes attached to extensor and flexor muscles of the user's trunk and under the command of a controller in communication with the sensors activate the muscles at the appropriate time in the cycle of push and recovery.

Abstract: A power-assisted orthosis is shown and described. The power assisted orthosis may include a knee orthosis adapted to be secured to at least one of a user's knee joint, a hip orthosis adapted to be secured to a user's hip joints, and a first actuator attached with the knee orthosis, the first actuator moveable in conjunction with movement of the at least one of the user's knee joint. The power assisted orthosis may also include a second actuator attached to the hip orthosis, the second actuator moveable in conjunction with movement of the user's hip joints, and a valve in fluid communication with a port of at least one of the first and second actuators, where the valve controls fluid flow within the at least one of the first and second actuators to lock or unlock at least one of the first and second actuators.