A prosthetic foot with an adjustable ankle includes an upper portion
coupled to a socket of an amputee. A lower portion is adjustably coupled
to the upper portion, and is attached to a foot member with heel and toe
sections. A movable coupling is disposed between the upper and lower
portions, and includes a displacement member slidably coupled to a
displacement track. The movable coupling allows the toe section to pivot
downward and the heel section to simultaneously displace forward. The
adjustable ankle can be adjusted with a motor coupled to a tractor bolt
coupled between the upper and lower portions. A level sensor can sense
the orientation of the upper portion and send a signal to operate the
motor to vertically orient the upper portion or level the foot.