Question

Which bodily response does walking briskly for an hour generate?

A. Oxygen is needed, so the fast-twitch muscle fibers contract slowly.

B. Power is needed, so the slow-twitch muscle fibers contract quickly.

C. Oxygen is needed, so the slow-twitch muscle fibers contract slowly.

D. Power is needed, so the fast-twitch muscle fibers contract quickly.

Answer 1

Answer: C. OXYGEN is needed, so the SLOW-twitched muscle fibers contract slowly.

Explanation:

I'm just put it like this, for any exercise oxygen is the prime requirement for your muscles, so B and D are out, and if your moving BRISKLY, your muscles are moving faster but compared to running there moving SLOWER, so therefore, your answer is C.

Answer 2

Answer:

Oxygen is needed, so the slow-twitch muscle fibers contract slowly.

Explanation:

just took the test