Fast Twitch Muscle Fiber

Fast Twitch Muscle Fiber

A muscle fiber that has fast contractile characteristics. Fast twitch muscle fibers have a lower capacity to use oxygen than slow twitch muscle fibers. They are most commonly used for short bursts of energy or exertion. These muscles fibers are crucial for success in sprinting and weight lifting.

If you'd like to learn more about muscle and how to improve strength, please explore the many muscle building classes offered by our health clubs such as weight training, muscle toning, and ab sculpting.

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