Muscle fibre types

• What are slow-twitchfibers fibres?

  Aerobic

  Also known as type 1 fibres and are red.
• What are fast twitch fibers?

  Anaerobic

  Also known as type 2 fibres and are white
• Type 2a fast twitch can be trained to...?

  Take on characteristics of either slow twitch or fast twitch fibres
• Type 2b is purely anaerobic. True or false?

  True