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Sports

Endurance vs Power Sports

Quick fact

Elite marathon runners have up to 80% slow-twitch fibers in their leg muscles, while world-class sprinters often have 70-80% fast-twitch fibers, a difference partly shaped by genetics.

Why this is interesting

Why can a marathon runner barely lift a heavy barbell, while a powerlifter gasps after a short sprint? The answer lies in how your body's 'engines' are built for entirely different jobs.