If you’re aiming for a six-pack, four-time Mr. Olympia Jay Cutler has the ab training tips you need to get there, and it all starts with decline crunches. While crunches often get a bad rap, Cutler’s ...

First secure your legs at the end of a decline bench and lie down. Place your hands lightly on the side of your head. Begin to lift your shoulders off the bench while keeping your lower back in ...

Planks are better at building core strength because they engage the deepest layer of your ab muscles. Crunches mainly target the surface abs—the “six-pack” muscles—and are better at improving ...