This side bend uses a stability ball to support the body instead of a bench.
Muscle group: Abdominal
Steps
Rest the side of your torso, waist and hip on a stability ball. Support your feet on the floor or against a wall for balance. Hold a weight beside your head in one hand and place the other hand on your chest. Bend sideways at the waist to raise your torso off the ball. Lower back under control.
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