Top 10 Proven Ab Killers of All Time

6. The Leg Stretch

During the first few days, this ab exercise may not seem to hit you fully, but after 3 or more days, you will definitely feel the burn.

The leg stretch is a great workout for your abs and your hip flexor, and it’s perfect for stretching your leg and hip muscles after a cardio workout.

To perform single leg raises, lie on the floor with your knees pulled into your chest.

Place your left hand on your right knee, your right hand around your right ankle, and pull your right leg firmly toward you as you lift your head a couple of inches off the floor and extend your left leg out at a 45-degree angle.

Hold this position for a couple of seconds, then slowly lower your left leg, bring it back to your body and switch legs. Work up to 20 reps, alternating legs each time.

To perform double leg raises, lie on the floor with your legs outstretched, about an inch off the floor, toes pointed.

Place your hands beneath the base of your spine for support and comfort. Lift your head a couple of inches off the floor and extend both legs above your hips in a slow, fluid motion. Lower your legs slowly to the starting position. It should take one count to raise your legs and three counts to lower them. Exhale as you lift and inhale as you lower.