NAME: Stella Abrera
WEIGHT: 113 pounds
WORKOUT ROUTINE: Takes a 90-minute ballet class every day. Circuit-trains at the gym and swims for 30 minutes four days a week.
BODY COMPOSITION: 12 percent body fat with a BMI of 18.2.
AEROBIC CAPACITY: VO2 Max of 44, which puts her in the 90th percentile for women between the ages of 30 and 39.
MUSCULAR STRENGTH: 65 crunches and 15 push-ups.
POWER: 9-inch vertical jump.
FLEXIBILITY: 13.8 inches on the sit-and-reach test.
THE VERDICT: Your dream of becoming a ballerina may not have panned out, but don't let that stop you from getting a pair of killer legs — and abs. (Our dancer had the strongest core of the group.) Pliés on their own promise a longer, leaner version of yourself, but supplementing them with a Spin class three times a week will keep your heart strong, too.