Lie on stability ball with the ball in the middle of your back, feet flat on the ground and knees directly on top of your ankels. Holding a weight at your chest. Contract abs and exhale, moving into a crunch postion keeping your hips lifted. For a more intense crunch, hold the weight with straight arms overhead.
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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