Which statement describes articulated feet in prosthetics?

Which statement describes articulated feet in prosthetics?

• A. A separate foot and lower shank are connected by a metal bolt or cable.
• B. A single solid foot and shank with no movable joints.
• C. A hydraulic joint at the ankle connects foot to shank.
• D. Foot and shank are connected by a flexible strap with no bolt.

Answer: (A)

Articulated feet in prosthetics have a separate foot and lower shank that are connected by a movable joint, such as a bolt or cable, allowing motion at the ankle. This joint lets the foot flex and adapt during gait, which differs from a solid, non-movable connection. The description of a separate foot and shank joined by a mechanical joint precisely captures that movable ankle relationship. In contrast, a single solid foot and shank with no movable joints lacks ankle motion altogether, and a strap connection or a hydraulic setup describes other designs but does not define the basic mechanical linkage between distinct foot and shank components.

Articulated feet in prosthetics have a separate foot and lower shank that are connected by a movable joint, such as a bolt or cable, allowing motion at the ankle. This joint lets the foot flex and adapt during gait, which differs from a solid, non-movable connection. The description of a separate foot and shank joined by a mechanical joint precisely captures that movable ankle relationship. In contrast, a single solid foot and shank with no movable joints lacks ankle motion altogether, and a strap connection or a hydraulic setup describes other designs but does not define the basic mechanical linkage between distinct foot and shank components.