As a former ballerina with the NYCB, Rachel Piskin lived every little girl's dream of donning a tutu to dance coveted roles like Marie in "The Nutcracker." Now, Piskin has combined her professional training with her passion for ballet and fitness as the co-founder of Chaise Fitness Lounge in New York, and the creator of Ballet Bungee.

These moves, a mix of ballet and Pilates, should be done at an aerobic pace. By keeping your body in constant motion, you work your muscles the entire duration and burn more calories.

Overhead bungee cords are a major component in Piskin's Ballet Bungee, because, she says, they develop and strengthen muscles faster. At home, a stretchy rubber exercise band will get you the same results.

What You'll Get: This beginner plié move will warm up your muscles while strengthening your glutes, inner and outer thighs, hips, hamstrings and core.

Here's How: Begin with your feet in a wide second position (feet hip-distance apart, toes pointed out). With your exercise band folded in half, hold your arms out in front of you, with one end of the band in each hand. As you bend your knees into a plié, raise your arms over your head, and lower your arms as you straighten your legs back into starting position. Make sure to keep tension in the band as you continue, and keep your stomach muscles engaged.

Do This Many: Complete 2-3 sets of 20 pliés.

What You'll Get: This leg tap exercise lengthens and tones the lower body muscles to help you get those long, lean ballerina legs . It also builds upper body strength, balance and coordination.

Here's How: Start by standing on the left leg on the center of your exercise band, holding both ends. Position your right leg (knee slightly bent) in a turned-out position. While keeping the leg turned out, lift it up into a front attitude, keeping it bent at a 90-degree angle (imagine you're balancing a glass of water on your knee). As the leg is lifted, your arms should be held out to the side as well, slightly lower than your shoulders. Lower the right attitude leg to tap the floor, lowering your arms in unison.

Do This Many: Complete 10-20 front attitude taps and 10-20 front attitude pulses (holding the leg in the attitude position and pulsing slightly upward), on each leg. Then, repeat with the leg held in attitude back, right and left.

What You'll Get: This total body move takes the plank (a super-effective move for building core and upper body strength), and adds a dancer's plié to target the glutes, inner and outer thighs, hips and hamstrings.

Here's How: Place your feet against the wall, slightly turned out, and walk your hands out in front of you until you're in the standard plank position. For the plié, bend your knees and pull your hips back towards the wall. Push off the wall to extend back into your starting plank position. If you're really feeling ambitious, add a pushup when you're in plank position after each plié.

Do This Many: Do 2-3 sets of 15 plié planks, taking short rests in between.

When it comes to eating right, Kaiser -- who works with notoriously fit celebs like Shakira, Sarah Jessica Parker and Kelly Ripa -- emphasizes the importance of eating whole foods and drinking lots of water to promote long, lean muscles. "Stick to unprocessed foods without sugar and additives and preservatives," she says. "Whole grains, veggies and lean proteins are all going to help you."

Kaiser also recommends you cut yourself off from eating three hours before bed, and "stay away from sugar," she stresses. "It's more toxic than alcohol and four times more addictive than cocaine. Be wary of foods like skim milk, processed yogurt, workout recovery drinks and any type of bar," she says. These are some of the things we don't realize are high in sugar.