Between feeds, naps and nappy changes, this new Dad gave himself a whole new challenge, and it yielded some surprising ...

Sit-ups target your abdominal muscles, back muscles, and hip flexors, while crunches only target your abdominal muscles. • ...

Sit-ups often come to mind when you think about working your abs or strengthening your core. It’s one of the most old-school, well-known exercises for ab-shredding, but recently, it’s become less and ...

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 ...

Think the fitness tests you did in gym class were tough? The U.S. military has been putting its service members through the ...

A major change to fitness tests throughout the military has been the substitution of plank poses for sit-ups or crunches. This can be a challenge, especially if you had been doing two minutes of ...

Whether you loved it or loathed it as a kid, the exercises can still be a revealing measure of health — now that no one’s forcing you to do them. By Danielle Friedman If you went to an American public ...

The Army’s physical fitness test has remained unchanged for some 40 years: two minutes to do as many push-ups as possible, then two minutes for sit-ups, then a two mile run. Recruits need a certain ...

Fitness in 4: No sit-up abs Even if you don't want a six-pack, it's important to have a strong core for mobility. Elite Fitness Professionals CEO Joe Hunt shows us how to work on those abs - with no ...