impulse-variability theory

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A theory applied to simple, rapid aiming movements in which the variability of the impulse of forces leads directly to variations in the movement end-point of a limb. The impulse-variability theory maintains that as the distance from a target increases, more force must be exerted, leading to a greater variability in movement trajectory, decreasing the chances of hitting the target. To compensate for this, the movement time can be slowed down.

Subjects: Sports and Exercise Medicine.

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