Lie faceup on the floor with your legs extended, feet together. Extend arms above your chest, palms facing forward, fingers pointing toward the ceiling. Drop shoulder blades down away from your ears. Inhale, tucking your chin to look at your navel as you begin to roll your upper body up, keeping your spine rounded [A

Exhale, pulling your navel toward your spine as you continue rolling up, slowly raising your upper body to a full seated position [B]. Slowly roll back down to starting position, keeping arms raised, and repeat for all reps. Begin with 4 roll-ups; gradually build to 6.Targets rectus abdominis.