Compared to a long distance runner, a world class sprinter probably has more of which kind of fibers in her legs?
A) slow-twitch
B) fast-twitch
C) smooth muscle
D) striated muscle

Question

Quizplus · Accepted Answer

World class sprinters rely heavily on explosive power and speed, which are characteristics of fast-twitch muscle fibers. Long distance runners mainly use slow-twitch muscle fibers for endurance activities.

Compared to a Long Distance Runner, a World Class Sprinter