Straight Arm Medicine Ball Side Bend Show Video Show All Exercises     Primary Muscle Group: Abdominal Obliques Muscle Groups Worked in This Exercise: Obliques and Rectus Abdominis Preparation: Stand erect with back and head straight up. Medicine ball should be placed between hands and directly overhead with elbows just slightly bent. Breathing: Breath out on the contraction of the muscle and breath back in on the way back to the start position. Execution: Begin the exercise by bending to the side as you continue your upright body position and you focus on squeezing in your obliques as you maintain the medicine ball position above your head. Repeat alternating by bending to both sides. Here are a few suggested alternative exercises: Ab Crunch Obliques Ball Crunch Traditional Dumbbell Side Bends Lateral Bend with Barbell