Here at Men's Health we love the plank. It strengthens your abs, stabilizes your spine, and prevents lower back pain. But let's be honest: Once you master the move, it can get boring just hovering there. That's why Tony Gentilcore, C.S.C.S., strength coach at Cressey Perfomance in Hudson, Massachussetts, and creator of ABS 360, came up with prone plate switches -- a new, super hard version of the classic plank. Here's how it works: While in a plank position, you must move a stack of weight plates from one side of your body to the other side using one hand. "In order to stay in a perfectly stable plank position, your core must fight against rotation as the load travels in front of your body,"says Gentilcore. The result is an extremely tough core-chiseling exercise that's anything but boring. (In addition, keep yourself motivated with these 20 Ways to Stick To Your Workout.)
Ready to try it? Watch the video below to learn how to perform the prone plate switch with perfect form.
(Build a better performing body and a sculpted core with The Toughest Exercise You Aren't Doing (but Should.))