Prosthetic Rolling Joint Foot and Ankle

We will develop a Rolling Joint Prosthetic Foot and Ankle (RJFA) with a newly invented cam rollingwhich kinematic and dynamic outcome (moment of resistance to deflection in three planes) is closer tprototype. Phase I has several specific aims: (1) optimize the independent prototype parameters, sucsurfaces, rigidity of elastic band, methods of bands's attachment, stiffness of the tibia and foot cwith a mathematical model developed; (2) manufacture and mechanically test two kind of prototypes atWood Company (OWW), Mt. Sterling, OH; (3) conduct a pilot biomechanical study of walking (4-5 subjecRJFA prototypes to prove a hypothesis that a new mechanism with the proposed outcome improves a BK anormalizing of the existing knee performance and increasing stability of stance. Potential commerciaresearch upon completing Phase I and Phase II is the creation of a new product line at the OWW. Longthis research is development of durable and economical RJFA, which will enhance performance of an amnew mechanical features without increase in the cost.