After a vigorous workout without consuming significant amounts of water, the specific gravity will have a higher concentration. A vigorous workout increases the breakdown of glucose, without enough water to flush it out it remains in the urine;meaning specific gravity will be high because of the of the high glucose content.
To see how they achieve near perfection from their stretches and exercises to Thier rehearsals and onstage. How they take care of a hectic schedule and deal with the pain that comes with being on pointe up to 8 hours a day.