Answer :
The statement is false; individuals have varying proportions of slow-twitch to fast-twitch muscle fibers, often influenced by genetics and training, making each person's muscle fiber composition unique.
The statement that all people have the same proportion of slow-twitch to fast-twitch muscle fibers is False. Humans have a mix of both types of muscle fibers, but the proportion varies greatly among individuals. Slow-twitch muscle fibers (Type I) are more efficient at using oxygen to generate fuel for continuous, extended muscle contractions over a long time, making them great for endurance activities. In contrast, fast-twitch fibers (Type II) are better at generating short bursts of strength or speed than slow-twitch fibers and can get tired more quickly. Athletes, for example, may have a different ratio of these fibers, often tailored to their specific sport or activity's demands.
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