Which statement is an advantage of a body-powered prosthesis?

Which statement is an advantage of a body-powered prosthesis?

• A. Durable and can be exposed to environmental changes provided proprioceptive feedback
• B. Higher maintenance costs
• C. Requires minimal harnessing
• D. Provides a larger functional envelope

Answer: (A)

A body-powered prosthesis relies on a simple harness and cable system, which gives it exceptional durability and reliability in real-world use. Because there are no electronics to corrode, short, or fail in harsh environments, it can be used in wet, dusty, or rugged settings without special care. The user also gets proprioceptive feedback through the control cable—the tension and movement of the cable convey how much the hand is opened or closed, so you can sense limb position and grip strength directly through the body. This combination of rugged construction and immediate sensory feedback makes it a strong practical option in many daily- living situations. Maintenance tends to be lower than electronic devices, since there are fewer components that wear out. Harnessing is essential to operate a body-powered device, so saying the device requires minimal harnessing isn’t accurate. And the functional envelope is typically not larger than that of some electronic options, due to the harness and cable arrangement, so that point doesn’t represent an advantage of body-powered systems.

A body-powered prosthesis relies on a simple harness and cable system, which gives it exceptional durability and reliability in real-world use. Because there are no electronics to corrode, short, or fail in harsh environments, it can be used in wet, dusty, or rugged settings without special care. The user also gets proprioceptive feedback through the control cable—the tension and movement of the cable convey how much the hand is opened or closed, so you can sense limb position and grip strength directly through the body. This combination of rugged construction and immediate sensory feedback makes it a strong practical option in many daily- living situations.

Maintenance tends to be lower than electronic devices, since there are fewer components that wear out. Harnessing is essential to operate a body-powered device, so saying the device requires minimal harnessing isn’t accurate. And the functional envelope is typically not larger than that of some electronic options, due to the harness and cable arrangement, so that point doesn’t represent an advantage of body-powered systems.