Question

muscular strength exercises such as sprinting and power lifting use which type of muscle fibers? fast twitch involuntary endurance slow twitch

Explanation:

Muscular strength exercises like sprinting and power lifting require quick, powerful muscle contractions. Fast - twitch muscle fibers are designed for high - intensity, short - duration activities that demand rapid force production, which matches the nature of these exercises. Involuntary muscle fibers are not under conscious control (like smooth or cardiac muscles) and are not related to these voluntary strength exercises. Endurance is a characteristic related to muscle performance over time, not a type of muscle fiber. Slow - twitch muscle fibers are better suited for endurance - type activities (like long - distance running) as they are more fatigue - resistant and use oxygen - based energy systems.

Answer:

A. fast twitch