If you’ve ever tried them, you know side planks are challenging­—even more than regular planks. But they’re a critical move, says Keli Roberts, an exercise physiologist with the American College of ...

But theres one advanced variation that targets muscles regular side planks miss: the Copenhagen plank.A Copenhagen plank is a side plank variation in which one leg is supported on an elevated surface, ...

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 ...