SPARKy Prosthetic Puts Spring Into Step (VIDEO) Arizona State University This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Arizona State University researchers have developed a prosthetic device that literally puts the spring back into an amputee's step. The ASU scientists have developed and refined SPARKy (for spring ankle with regenerative kinetics) into a smart, active and energy storing below-the-knee (transbitial) prosthesis. This video includes inventor, demonstrator and students who worked on the project. Credit Arizona State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.