Stronger abs without a single crunch? Yes, please. Here's how to do a plank the right—and why they're so good for you. Fact checked by Emily Peterson Meet the sit-up's even more effective sibling: the ...

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 ...

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

YOU PROBABLY THINK you know how to do a plank. The ab training staple is relatively simple, after all—boiled down to the basics, all you need to do is get down on the ground and hold in place.

YOU KNOW THE SAYING: Work smarter, not harder. You may have already incorporated that mentality into your training routine, subbing unfocused, 60-minute workouts for strategic 30-minute sessions, or ...

Add Yahoo as a preferred source to see more of our stories on Google. YOU KNOW THE SAYING: Work smarter, not harder. You may have already incorporated that mentality into your training routine, ...

RENO, Nev. — A plank is one of the best exercises for your core because it builds isometric strength to help sculpt your waistline and improve your posture. We had Camie from Camie Cragg Fitness join ...

Fitness and wellness expert Michele Cuffe demonstrates the proper way to do the plank exercise and shares the amount of time everyone should be able to do it depending on their age.

If you deal with achey, sensitive wrists, you may have decided long ago that planks simply aren’t for you. But don’t shut down the core workout just yet: If you still want to feel the full body burn ...