Friends, hands down, the best best belly busting exercise for shaping and toning belly muscles is…the bicycle maneuver! Like Pilates, it targets the lower abs and core. Lie on your back and raise your legs in the air, with your hands loosely clasped behind your head. Do not pull at your neck. Begin moving your legs as though riding a bike, and then pull your upper body with the stomach muscles towards your legs, lightly touching the opposing knee with each elbow. This opposing movement targets waist and back. Ensure your legs are fairly high up, or you will rapidly tire your leg extensors before the stomach. They should not be raised right up but should be at 45 degrees or more. Keep that up for 3 whole minutes and you can rest assured that by activating muscles, we activate our metabolism. People who maintain abdominal muscles defy their age.