This exercise targets your obliques like few crunches can, while still toning your rectus abdominals.
- Lie faceup on floor, with legs together and extended, hands behind head, elbows out to sides.
- Crunch up slightly with lower body, as you lift legs about one foot off floor.
- Keeping both legs lifted, rotate torso to left as you bring left knee in toward chest to meet right elbow, right leg extended.
- Switch sides and repeat.
- Continue alternating from side to side.