The ability to adapt to uneven terrain at any given moment is important in developing confidence in a prosthesis. Axial feet are designed to mimic normal ankle motion, providing the user with a safe, stable alignment while helping them adapt to irregular surfaces and reducing the stress that would otherwise be transferred up the prosthesis to the residual limb.
The single-axis foot is composed of a solid forefoot covered by a molded rubber foot shell. A mechanical joint axis allows the ankle to move up and down to reach a stable, flat-foot position quickly. This makes it ideal for limited walkers participating in activities that may affect knee stability such as walking down a ramp or other inclined surfaces.
Similar to the single-axis foot in weight, durability, and cost, the multi-axis foot operates using additional combinations of rubber bumpers. In addition to the up and down movement of a single axis foot, the multi-axis foot has the ability to move from side to side and absorb torque, allowing the foot of a limited walker to conform better to uneven surfaces.
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