Primary Muscle Group: Obliques
Muscle Groups Worked in This Exercise: Obliques and Rectus Abdominis
Preparation: Position yourself sitting on a stability ball with your knees bent at 90 degrees and used to balance your body on the ball. Hold a single dumbbell in both hands positioned in your mid core area close to your body and elbows bent outward.
Breathing: Breath out on the contraction of the muscle and breath back in on the way back to the start position.
Execution: Begin exercise by rotating your torso with the dumbbell positioned during the entire movement in your mid core area. Rotate to each side and pause at the end of each rotation movement and then move back to the start position. Rotate on each side equally.