Question

Why are slow-twitch muscles more beneficial than fast-twitch muscles for cardiorespiratory fitness?
A.

Slow-twitch muscles are longer and thicker than fast-twitch muscles.
B.

Slow-twitch muscles need less blood to contract than fast-twitch muscles.
C.

Slow-twitch muscles need more recovery time between exercise sessions than fast-twitch muscles.
D.

Slow-twitch muscles are able to use oxygen more efficiently than fast-twitch muscles.

Answer 1

Slow-twitch muscles are able to use oxygen more efficiently than fast-twitch muscles.