Muscle fibers come in two main types: slow-twitch and fast-twitch. Slow-twitch fibers use oxygen well, helping muscles keep working for a long time. They are good for activities like running or biking over long distances. Fast-twitch fibers provide quick strength or speed but don’t use oxygen as much. They are best for short bursts of energy like sprinting or lifting heavy weights, but they get tired faster.
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Muscle fibers can be categorized into two main types: slow-twitch and fast-twitch. Slow-twitch fibers are more efficient at using oxygen to generate fuel for continuous, extended muscle contractions over a long time. They are ideal for endurance activities like long-distance running or cycling. Fast-twitch fibers, on the other hand, generate short bursts of strength or speed by relying more on anaerobic metabolism. They are perfect for explosive activities like sprinting or heavy lifting but fatigue more quickly.
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