Is it better to have a slow or fast-twitching muscle?

Answer by  John (9008)

You need both. Each performs different tasks. Fast-twitch muscles move more quickly. Slow-twitch muscles have more power. Different ones are used for different tasks.

Answer by  jsmith (2067)

Its not an issue of being better, it depends on the function of the muscle. Fast twitch muscles tend to be used for locations where your body wants fast contractions - the muscles that move your eyes for example. Slow twitch as used for sustained contractions like your postural muscles.