Which component is often included in the design of a body-powered prosthesis for enhanced control?

In a body-powered prosthesis, control cables are a fundamental component that allows for user-controlled movement of the prosthetic device. These cables connect the user's residual limb to the prosthesis, enabling the individual to activate the prosthetic hand or hook by means of a harness system. When the user performs a specific movement, such as flexing or shifting their body, the cables are pulled or released, translating that movement into the desired action at the prosthetic interface.

This design leverages the natural movements of the user, providing a direct and intuitive means of control. Because body-powered systems are mechanically reliant on the user's own motions, they offer a lightweight, durable, and often cost-effective solution compared to more advanced powered prosthetics. The simplicity and effectiveness of control cables make them a standard feature in many body-powered prostheses, facilitating user engagement and enhancing functionality.

Other components like electromyographic sensors, battery packs, and pneumatic actuators serve roles in more advanced prosthetic systems, which might not require the physical exertion of the user to operate. These technologies often complicate the design and can introduce dependencies on external power sources or more complex mechanical systems.