Sprint refers to a brief but powerful upsurge of speed or power. In endurance activities, it refers to a final run to the end or an intense effort in working out. Some examples include a 200m run, a 30-second bike sprint, or the final 400m of a 5K. Sprinters utilize a higher proportion of fast-twitch muscle fibers and non-oxygen-dependent energy systems. Sprinting workouts enable endurance athletes to acquire burst power and speed at the end of a prolonged race.
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