Tight muscles can help a dancer do so much. It can help with rather small things like plies to leaping across the room very skillfully. Tight muscles can help you leap, jump and with technique such as, axels, layouts, pirouettes, and much more. Tight muscles are hard to get though, it takes lots of practices and rehersal sessions and lots of workouts to get tight muscles. You have to keep stretching every day and push yourself further each day. Thank You.