Write an article based on this summary:

Do plies. Do forward lunges. Do single-leg circles. Keep up the resistance training and cardio.
There's a reason that ballerinas are so fit! We can learn from them. Stand with your feet a bit wider than shoulder-width apart and angle your toes outward. Bring your arms out in front of you. They'll help you balance yourself and keep your back straight. Then, go down into a squatting position. Remember to align your knees with your toes! Return slowly to your original position, keeping your hips tucked under your spine. Repeat these movements for about a minute. Lunging on all sides is the most beneficial -- your thighs need to be worked on all planes. Stand up straight with your feet together, all the while engaging your abdominal muscles. While keeping your back straight, lift your right foot in the air and find your balance. Once you do, slowly bring it forward and place it on the ground, heel first. Straighten your left leg as you lower your right, maintaining weight on your front foot. Lower yourself until your right thigh and left calf are parallel to the floor and balance. Return to your starting position, pushing off with your front leg and switch sides. Repeat for about thirty seconds on each side or for as long as you can manage. These are commonly found in Pilates -- a great toning workout. Lie on the floor on top of a comfortable surface like a yoga or Pilates mat. Bring your arms to your side with your palms face down. Bring your right foot straight up, pointing to the ceiling. Rotate your leg outward a little. Keep your hips on the mat at all times. Then, inhale and move your entire leg in clockwise circles. Once you've done this five times, switch to counter-clockwise circles. Repeat this set four times, alternating legs. Alright, so you've got the thigh exercises down, but since there's no such thing as spot reducing, you'll need to work out your entire body, too. Cardio burns the most fat, but a combination of cardio and resistance training will lead to ultimate calorie burn. For intense results, take up interval training. It amplifies the benefits of cardio, burning even more calories. You do a short burst of exercise as hard as you can, rest for a bit, and repeat. And your workout is done much quicker!