The FitNation Rock 'N Plate supercharges your core, decreases your injury risk, improves overall athletic performance, and reduces soreness. Our editors independently select these products. Making a ...

Dwayne "The Rock" Johnson uses eccentric exercise to build muscle, his strength coach says. It involves lengthening muscles under tension, such as when you lower a weight (called a negative rep).

Looking to strengthen your core? You need to be smart with your exercise selection, which means ditching the crunches. Sure, they’re good if your main goal is to try carve a six-pack – as they ...