The Starfish exercise tones your abs and obliques.

-Okay. This move is called the Starfish, and it starts with her feet together. Her legs come off the floor and her shoulders are off. And then as she twists side-to-side taking the weight with her across the body, she's getting the shoulder blade off the floor. So, not only is she lifted up, rectus abdominis is working, but as she twists side-to-side, she's getting the inner and outer oblique. One more this side, one more all the way down, and then relax.