This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. We are working to develop an externally powered, wearable assistive joint brace. This device will sense the user's desired joint torque from surface EMG (electromyogram) signals on his or her skin, and apply a proportional amount of torque in parallel with his or her muscles, via an external actuator. Our hypothesis is that this device will have applications in Rehabilitating individuals that have suffered from incomplete spinal cord injuries, strokes, and other debilitating neuromuscular conditions. In addition, there is the possibility of this technology being used as a long term mobility aid. Our key assumption is that rehabilitation is greatly accelerated when the afflicted limbs can offer some degree of utility to the individual. By restoring partial function to said limbs, a user begins to use the limbs more frequently, promoting a higher level and rate of rehabilitation. We also expect that active bracing may have a positive influence on neglect, by drawing attention to the user's limb when he or she attempts to move it. As a long-term mobility aid, our assumption is that this device would improve the quality of life, and decrease care costs for individuals who have difficulty using their limb(
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