Fast-twitch muscle fibers contract rapidly for bursts of power, rely on anaerobic respiration, have few mitochondria, and tire quickly.
Fast-twitch muscle fibers contract quickly for short bursts of speed and power, rely on anaerobic respiration, have few mitochondria, and fatigue rapidly.
| Front | Fast twitch muscle fibres |
|---|---|
| Back | contract very quickly good for short bursts of speed and power get tired very quickly energy released quickly via anaerobic respiration using glycogen few mitochondidria or blood vessels not much myoglobin |
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