Watch Frazer perform the ab rollout
Key Movement Points: 1. Start with roller directly under your shoulders 2. Engage core 3. Slowly and in a controlled manner push the roller out infant of you without breaking form 4. Return to starting position without letting the hips dip of the body sag.
Main muscles worked: The ab rollout activates most muscles around the torso as well as the arms, shoulders and legs playing an accessory role.