This sequence exhausts large muscles early on, so the small, underused "accessory" muscles get more of a workout. The exercises also help add definition to hips and lower abs. If you can't complete all the reps listed, do as many as possible. A mat is recommended.
1. LEGS STRAIGHT OUT Lie on your back, hands behind head, legs straight out. Point toes and crunch up. Do 50 reps.
2. CLICK-TOGETHER LIFT Crunch
Lie on your back, hands behind head, legs straight out and shoulder-width apart with knees facing ceiling.