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Crunches might receive most of the attention when it comes to sculpting a six-pack, but if you want a strong, chiseled middle, it pays to stay still. Here's how to do the perfect plank, and how it can help you strengthen your core! // fitness // tips // how to do a plank // ab workouts // video // Beachbody // BeachbodyBlog.com

Crunches might receive most of the attention when it comes to sculpting a six-pack, but if you want a strong, chiseled middle, it pays to stay still. Heres how to do the perfect plank, and how it can help you strengthen your core! // fitness // tips // h