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If you want to define your obliques, you aren’t alone. Not only do they contribute to getting a chiseled core (that's a nice perk, too), but strengthening these muscles does wonders for your overall ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Don’t fancy Russian twists? Try plank windmills instead. They're one of the ...

I learned a new Pilates core exercise recently, and it will set your obliques on fire without a Russian twist or side plank in sight. It builds strength in the muscles that run along your waist while ...