Complex sentence: Another key benefit derived from the size principle is that smaller neurons will be fired more regularly and for longer durations than those that are larger, and these smaller motor units are more resistant to fatigue, and as such, are better suited to this role.
Split into simpler sentences: Another key benefit derived from the size principle is that smaller neurons will be fired more regularly and for longer durations than those that are larger. These smaller motor units are more resistant to fatigue, and as such, are better suited to this role.