Question

definition moment arm of force​

Answer 1

Answer:

A moment arm is simply the length between a joint axis and the line of force acting on that joint. Every joint that is involved in an exercise has a moment arm. The longer the moment arm is the more load will be applied to the joint axis through leverage.

Answer 2

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A moment arm determines the influence of a force to produce (or prevent) the rotation of an object around an axis. It is the shortest perpendicular distance between the line of exerted force (resistance) and the axis (the joint) attempting to resist that force.

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