Vanilla ice cream, a plain cheeseburger, that little black dress-sometimes keeping it simple is actually the most satisfying. That goes for the core move youve probably done in almost every workout ...

While the standard plank is widely incorporated into core workouts, the side plank is often overlooked. This variation of the plank targets the obliques, the muscles that run along the side of your ...

Add Yahoo as a preferred source to see more of our stories on Google. If you’ve ever tried them, you know side planks are challenging­—even more than regular planks. But they’re a critical move, says ...

For a core- and glute-specific workout, you'll love this eight-move workout from ISSA-certified personal trainer and Under Armour trainer Sydney Torabi. It's quick (done in 20 minutes!), but intense!