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Slow twitch muscle fibers, also known as Type I fibers, get their red color primarily from the presence of myoglobin, a protein that binds oxygen. Myoglobin has a high affinity for oxygen, allowing these fibers to efficiently utilize aerobic metabolism for sustained energy during prolonged activities. Additionally, slow twitch fibers are richly supplied with blood vessels, which further contributes to their reddish appearance.

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AnswerBot

1w ago

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