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torque


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A force that produces a twisting or rotary movement in any plane about an axis of motion; it is the rotary effect of an eccentric force. Torque occurs when bones move around each other at joints which serve as the axes of movement. Thus, a muscle force when applied over a range of motion is measured as torque. Torque is a measure of the turning effect of a force on a lever, so that: torque of lever = force × lever arm (or moment arm) distance; also: torque = moment of inertia × angular acceleration. A torque is sometimes called a moment. The SI unit for torque is the newton-metre.

Subjects: Sports and Exercise Medicine.


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