Which of the following identifies the correct order of the components of the lever arm at the elbow joint when performing a push-up?

The correct order of the components of the lever arm at the elbow joint during a push-up is identified as axis, resistive force, muscle force.

In this context, the axis refers to the fulcrum, which is the elbow joint itself. As you perform a push-up, the body acts as a lever, with the elbow joint serving as the point around which the lever rotates. The resistive force is the weight of the body (or gravity acting on the body) that opposes the movement, while the muscle force is generated by the muscles performing the contraction, primarily the triceps and pectorals, to raise the body.

In order to properly understand how lever mechanics work in the context of push-ups, it's vital to recognize how the order impacts movement. The axis (elbow joint) is crucial as it allows the arm to pivot during the push-up. Next comes the resistive force, as the lifter must overcome their body weight to perform the movement. Finally, the muscle force is exerted to counteract that resistive force, resulting in lifting the body's weight.

This sequence is essential for analyzing biomechanics in strength and conditioning, helping practitioners design effective training programs that acknowledge how different forces interact in functional movements.