This exercise works your lower abdominal region.

Lie on your back, hands alongside your hips.

Your upper body must stay firmly fixed on the floor. Lift your legs off the floor, knees bent at 90 degrees.

Contract the lower abdominal muscles and lift your hips off the floor. Your knees will move in towards you.

Do not bend and extend the knee. Slowly lower your hips.

Exhale as you lift and inhale as you lower.

Start of with one set of 16 repetitionas and progress to two sets after you can do the first set with less difficulty. Do not stop between repetitions.