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    Physical Education A-Level

    Motor unit recruitment and the size principle

    What Motor unit recruitment and the size principle means in Physical Education A-Level, as defined for AQA.

    Definition of Motor unit recruitment and the size principle

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    Reference: AQA

    The activation of motor units, which increases progressively with intensity so that more and larger motor units are activated as intensity rises.
    AQA · Neuromuscular system (study guide)

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