This exercise is great for entire abdominal area and especially for lower abdominal muscles.
Lie on your back on the floor. Place your arms straight behind your head and lock them in your elbows. You legs are straight and locked in their knees.
Raise your arms and legs and bend at the waist. Raise your legs and arms so they meet or are parallel. Stay in this position for a second. Remember to keep your elbows and knees locked. Lower your arms and legs back to the sta