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fast-twitch

    0.01 sec.
fast-twitch
adj.
Of or relating to skeletal muscle that is composed of strong, rapidly contracting fibers, adapted for high-intensity, low-endurance activities.


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13,18,19) Initially following SCI in humans, fiber-type transitions occur mostly within fast-twitch fibers, with myosin heavy chain (MHC) IIa replaced by MHCIIx.
Scientists believe that the speediest sprinters may have an even higher percentage of fast-twitch fibers than the average racehorse.
Some data suggest higher reps for slow-twitch muscle groups and lower reps for fast-twitch muscle groups.
 
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