Primary Muscle Group: Chest, abs, thighs.
Muscle Groups Worked in This Exercise: Anterior Deltoids, Pectoralis Major, Rectus Abdominus, Quadriceps
Preparation: Lie with your upper back, neck and head supported by the ball. Grasp a dumbbell in each hand and bend your elbows in a circular manner to your body.
Breathing: Exhale when pressing hands up in a circular motion as if you were hugging a tree, inhale as you return them to start position.