HMS, BM EQ-Bank 854 MC

For a sprinter with a prosthetic lower limb, which biomechanical principle most directly contributes to movement efficiency?

Using upper leg muscles to apply force to the prosthetic limb
Generating rotational force through the prosthetic joint
Decreasing the weight of the prosthetic to reduce momentum
Widening the stance to create a more stable base of support

Show Answers Only

\(A\)

Show Worked Solution

A is correct: Upper leg muscles apply force to prosthetic device for forward propulsion.

Other Options:

B is incorrect: Prosthetic limbs prioritise linear force transfer, not rotational generation.
C is incorrect: Weight reduction alone doesn’t improve efficiency without proper force application.
D is incorrect: Wider stance reduces sprinting efficiency by limiting forward momentum.