Tommaso Lenzi.jpg (IMAGE) University of Utah Caption University of Utah mechanical engineering assistant professor Tommaso Lenzi (left), helps Alec McMorris put on an experimental exoskeleton that Lenzi has developed for lower-limb amputees. The lightweight powered exoskeleton allows users to walk with much less effort thanks to a series of motors, microprocessors and advanced algorithms. Credit Dan Hixson/University of Utah College of Engineering Usage Restrictions No restrictions. License Public Domain 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.