Medically reviewed by Amy Kwan, PT Planks, which have elements of Pilates, yoga, and stretching, require little space. They ...

Pilates pro Simone de la Rue demonstrates how to do a plank jack—aka the ultimate cardio and core-strengthening move—with proper form. A little known fact about planks: In addition to working nearly ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." THERE'S A REASON people often refer to strength training simply as "lifting:" it almost always involves ...

Slouching spine? Pre-posture-ous! Our spines are the scaffolding for the body, and unfortunately, proper posture has become a common casualty of our increasingly sedentary culture. The immediate ...