https://www.axilesbionics.com/publications/design-of-the-amp-foot-20-an-active-trans-tibial-prosthesis-that
Design of the AMP-Foot 2.0 : An Active Trans-tibial Prosthesis that Mimicks Able-Bodied Ankle...
Discover AMP-Foot 2.0, an innovative powered transtibial prosthesis mimicking natural ankle behavior. Enhance propulsion with efficient energy usage