If there’s one exercise we all love to hate and hate to love, it’s this one. A plank is a simple, effective bodyweight exercise that requires no equipment and can be performed just about anywhere (well, use your judgement).Holding your body (light as a feather) stiff as a board develops strength primarily in your core — the muscles that connect your upper body and lower body — as well as your shoulders, arms, and glutes. Find out how to perfect your planking! ~ Berceste