If you complete 100 abdominal crunches a day, you might build a little muscle, but more likely, you’ll be left with sore muscles and not much else. The crunch and its relative, the sit-up, can each ...

I grew up doing my mom’s Jane Fonda workout videos with my sister in our living room. If you’re in your late forties, you’ll remember the crunch was king back then—the more, the better! When I wasn’t ...

Core exercises for stronger abs include crunches, teasers, planks, and body-weight squats. A strong core helps improve balance and posture.

In TODAY.com's Expert Tip of the Day, a trainer reveals her favorite exercise for a more defined waistline and strong core ...

View post: Get Strong in Just 30 Minutes With This "Express" Chest and Back Workout for Busy Guys ...

When most people think of core exercises, they think crunches and sit-ups – possibly because the tactical professions have used them for decades. But given recent changes in military testing, the next ...

Think of strength as insurance. Maybe you don't care about how much you can lift, but you should want to know how to get stronger so you can live life to the fullest. Strong legs help you kick a ball ...

Skip ab machines. Build a stronger core after 40 with 4 bodyweight moves: shoulder taps, dead bugs, side planks, hollow holds.

Learn how to do the Copenhagen plank, a challenging side plank variation that strengthens your hips and core and improves ...