Which muscles are especially important when running up a flight of stairs at full speed?
A) Fast-twitch muscles
B) Slow-twitch muscles
C) Smooth muscles
D) Intermediate muscles

Question

Quizplus · Accepted Answer

Fast-twitch muscles are responsible for explosive movements and high-intensity exercises, such as sprinting up stairs at full speed. These muscles provide the necessary power and force to quickly contract and generate energy for the movement. Slow-twitch muscles, on the other hand, provide endurance for longer activities such as distance running. Smooth muscles are involuntary muscles that control organ and blood vessel function, while intermediate muscles are not a specific muscle type.

Which Muscles Are Especially Important When Running Up a Flight