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fast-twitch fiber

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fast-twitch (FT) fiber,
a muscle fiber that can develop high tension rapidly. It is usually innervated by a single alpha neuron and has low fatigue resistance, low capillary density, low levels of aerobic enzymes, and low oxygen availability. FT fibers are used in such activities as sprinting, jumping, and weight-lifting. Also called fast-twitch muscle fiber. See also slow-twitch fiber.


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You need to adopt a progressive training technique, which can stimulate the growth of both the fast-twitch fibers, as well as the slow-twitch fibers in your muscles, and which can maintain all the muscles of your body in a continuous state of shock, so that a plateau stage is not arrived at easily.
The slower type of fast-twitch fiber can be induced to have increased blood innervation which allows two things to occur: 1) an increase in the power of the athlete to be able to be hold for a longer time, but 2) the absolute amount of potential power able to be generated is somewhat diminished.
Both fast-twitch fiber types have larger diameters and faster force-generation capacity than slow-twitch fibers (MHC type I).
 
 
 
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