Which type of muscle fiber predominates in the leg muscles of endurance athletes,such as long-distance runners?

Name: Which type of muscle fiber predominates in the leg muscles of endurance athletes,such as long-distance runners?
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Question

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Endurance activities such as long-distance running require sustained energy production, which is predominantly provided by slow-twitch (Type I) muscle fibers. Therefore, the leg muscles of endurance athletes predominately consist of slow fibers.

Which Type of Muscle Fiber Predominates in the Leg Muscles