Sit with good posture, knees bent and heels just off the floor. Hold a weight in front of your chest. Lean back slightly to engage your abs. Twist your torso from side-to-side, tapping the weight on the floor on each side.
We love these adjustable dumbbells from Rep Fitness. They take up very little space and are also very durable compared to other adjustable dumbbells on the market.
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