Luke completed his PhD in the mechanical engineering department. His work is on the machine design, controls, and testing of wearable robotics. Currently, he is developing a lower limb exoskeleton to improve the metabolic expenditure of locomotion. He began working in the Biomechatronics group as an undergraduate, and his initial work was on the controls of the Active Agonist-Antagonist Knee prosthesis v.0 and v.1. Luke’s master’s work is on the optimization of actuator design. His PhD work focused on the Clutchable Series-Elastic Actuated Knee, a Continuously-Variable Series-Elastic Actuator, and a quasi-passive pneumatic ankle prosthesis.