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7
Fast Fibers = white fibers = fast twitch (7)
- Contract (reach peak twitch tension) very quickly, strong contractions
- Majority in body
- Large in diameter
- Densely packed myofibrils
- Large glycogen stores
- Few mitochondria
- Fatigue rapidly, use a lot of ATP
- Majority in body
- Large in diameter
- Densely packed myofibrils
- Large glycogen stores
- Few mitochondria
- Fatigue rapidly, use a lot of ATP
