Researchers from Arizona State University researchers and Tempe-based Kinetic Muscles, Inc., have unveiled RUPERT (Robotic Upper Extremity Repetitive Therapy), the robotic arm to help stroke survivors. Both RUPERT models are powered by four pneumatic muscles to assist movement at the shoulder, elbow and wrist. These rehabilitative devices aid in task-oriented repetitive therapy, and the hope is that they will provide a cost-effective alternative to traditional therapy, which would enable a wider population to regain greater motor function.