Fast fibers
A) have low resistance to fatigue.
B) rely on aerobic metabolism.
C) have many mitochondria.
D) have twitches with a very brief contraction phase.
E) have low resistance to fatigue and quick twitches.
Question 2
The type of muscle fiber that is most resistant to fatigue is the ________ fiber.
A) fast
B) slow
C) intermediate
D) anaerobic
E) high-density