If you are looking for a real challenge, then try doing the RKC Plank. Invented by a former Soviet special forces trainer, ...

Planks are a simple, equipment-free exercise that strengthen your core, improve posture, and protect your back ...

Everyone wants a strong core. The first thing I ask every new Drucker Fitness client is what their fitness goals are. To this day, I have never had a client who did not mention having "ripped abs" or ...

When it comes to ab workouts, there’s a nine out of 10 chance they will involve some sort of a plank. The move is a staple for good reason: They’re challenging and certainly bring the burn to your ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Love ‘em or hate ‘em, planks are a popular fitness move for a reason: they’re effective. This one move engages the entire body, ...