Personalized Bionics for Dynamic Gait

Jimmy Day

The design of next-generation bionic ankles and knees aims to improve bionic actuators on all metrics: range of motion, power density, bandwidth, and mass, while adopting a futuristic aesthetic. We are pushing the limits of materials and magnetics, combined with new control topologies to enforce a new paradigm in both autonomous and volitional controlled powered prostheses.

Open access engrXiv pre-prints are available:

Energetic Consequences of Series and Parallel Springs in Lower-Extremity Powered Prostheses

Design and Preliminary Results of a Reaction Force Series Elastic Actuator for Bionic Ankle Prostheses


Matthew Orr


Andy Ryan