Question

If you were running a marathon, which type of muscle fibers would be most useful to you?
A.
slow-twitch
B.
fast-twitch, type I A
C.
intermediate-twitch, type II B
D.
slow-intermediate twitch, type I B

Answer 1

I done some research and found this

Slow Twitch

The third type of muscle fiber that you have in your body is classified as slow-twitch.

This is the muscle fiber type you would use if you were to run a marathon or any other extended duration, medium-to-low intensity activity.

Answer 2

Hope that helps