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

Strengthen more than just your core muscles with the humble-yet-mighty plank.

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Don’t fancy Russian twists? Try plank windmills instead. They're one of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Ah, the plank. It may just be one of the most intimidating exercises. Anyone who has shook their way through one knows that the ...

Burpees are a popular exercise, but they can put a lot of stress on your joints. You can swap burpees for other lower-impact ...

The plank exercise has earned its place as a staple in fitness routines worldwide, combining simplicity with effectiveness. Whether you are a beginner or an advanced athlete, planks offer a versatile ...

Plank jacks are a dynamic exercise that combines the core-strengthening benefits of planks with the cardiovascular boost of ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Planks are a go-to exercise for delivering full-body benefits with zero equipment. “If done correctly, ...

The Copenhagen plank is not your typical core move—it’s a side plank variation where you put your top calf on an elevated ...

George Hood completed around 1,500 sit-ups per day to train for the feat. An Illinois man who spent the past several months training seven hours a day, including 1,500 sit-ups daily, has broken the ...

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! Ah, the plank. It may just be one of the most intimidating ...