Try these Plank exercises to give you that Sexy 6 Pack Look

Plank on the Swiss Ball

Kneel on your hands and knees, resting your shins and the front of your feet on the ball behind you.

Set your abdominals and slowly roll the ball back to raise your feet and straighten your legs. Maintain this horizontal position for 10 counts.

Roll back to return to the kneeling position and repeat.

Remember to breath normally, keep your knees and back straight while in the horizontal position, avoid rounding your back and do the action slowly and controlled.

To make this exercise easier do the exercise without holding for 10 counts. Gradually increase the hold time.

To make this exercise harder hold for longer or try rolling the ball from side to side while in the horizontal position.