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    Physical Education A-Level

    Aerobic versus anaerobic ATP generation

    What Aerobic versus anaerobic ATP generation means in Physical Education A-Level, as defined for AQA.

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    Slow twitch (type I) fibres generate ATP mainly by aerobic respiration, using oxygen, while fast twitch (type II) fibres generate ATP mainly by anaerobic glycolysis and the phosphocreatine system.
    AQA · Energy systems (study guide)

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