Abstract: A carriage is longitudinally reciprocated along a fixed base by a motor. A first pair of arms are pivotally connected at their lower ends to opposite sides of the base. A second pair of arms are pivotally connected at their upper ends to corresponding ones of the upper ends of the first arms and at their lower ends to opposite sides of the carriage. With a person reclined on his or her back, one of the person's legs extends between the first arms and between the second arms. The foot is held to a foot support pivotally mounted on the carriage. The thigh is held in a thigh support which extends between the first arms so that reciprocating movement of the carriage articulates the knee and hip joints of the leg.

Abstract: A portable device for articulating a person's foot relative to the person's lower leg. A first embodiment of the device includes a pair of opposing cast portions configured to conformably fit around the person's lower leg. A pair of frame members are each connected to one of the cast portions and extend below the lower ends of the cast portions. A foot support plate is pivotally connected to the lower ends of the frame members. Detachable straps are secured in surrounding relationship about the cast portions and frame members for holding the cast portions around the person's lower leg with the foot resting on the foot support plate. A motor mechanism and a connecting rod reciprocate the foot support plate and the foot carried thereby relative to the person's lower leg. A second embodiment has selectively extensible longitudinal frame members which are laterally adjustable relative to a leg surrounding U-shaped motor mount.