It’s well known that the best abs workouts consist of more than hundreds of crunches and that sit-ups alone won’t result in a six-pack. But that doesn’t mean these famous abs exercises don’t have a ...

Sit-ups can be a great way to strengthen your abdominal muscles that sit around your stomach. But they can quickly get repetitive and its easy to accidentally lose your form, so when boredom strikes, ...

The starburst side plank variation strengthens the shoulders, abs and obliques. Here's why we love it at Tom's Guide.

Sit-ups (where the upper body is lifted completely) and crunches (where only the shoulder blades lift off the ground) are classic abdominal exercises. Photo: Getty Images Sit-ups and crunches are two ...

Develop your core with Bruce Lee's intense ab workout. Exercises like waist twists and leg raises can help you build strength ...

Master these classic core exercises (they're not the same!). Javier Zayas Photography/Getty Images If you’re a fan of core exercises, chances are both sit-ups and crunches are a staple of your workout ...

If you’re a little hazy on the difference between sit-ups vs. crunches, you’re not alone. They both strengthen your core, but the details on how they differ and the benefits of each can be confusing. ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." If your body were a bicycle, your abs and back muscles—your core—would be the frame. You need a ...

Master the bicycle crunch from start to finish, learn the mistakes most guys make, and add variations that target every part of your core.

Strengthen your core and slim your midsection with these five simple chair exercises that target your abs safely after 60.