For years, sit-ups were considered the ultimate ab exercise. But modern research shows they’re not the safest or most ...

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 ...

There are two kinds of people in this world: People who want to work their core and people who consider core exercises their worst nightmare. But regardless of which camp you fall into, if you are ...

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

To cut through the confusion around core training, we asked expert coach Jesse Padilla to share the exercises he believes ...

It’s kind of strange, if you think about it, that the sit-up should be a thing in the first place. In what world would we have to lie down and sit up repeatedly, until our bellies are sore? What are ...