(CNN) — Planks are widely considered by fitness experts to be a fantastic exercise to strengthen the muscles in your core and elsewhere, no matter your age or physical fitness level. (CNN) — Planks ...

The world of fitness has crowned a new champion in core training, and it’s not the traditional sit-up. The plank, a deceptively simple exercise, has captured the attention of fitness enthusiasts ...

No equipment, no excuses - just a full-body session that hits legs, glutes, core and shoulders in under 30 minutes ...

The plank is one of the most commonly performed core-strengthening exercises, and whether you're getting your heart-rate up at Barry's or at home (using a Class FitSugar video, per chance??), there's ...