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

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." That's why it pays to dedicate focused training time on your core. You can start with these ab exercises ...

Many think of the practice as stretching, but deep core exercises in yoga are one of the "most powerful ways to build ...

These deep core exercises will target the most important, but often neglected, part of your midsection to reduce back pain and improve posture. Instead, learn which muscles make up the deep core and ...

Maintaining a strong, stable core is among the most common fitness recommendations given to everyone from athletes to people with chronic pain. Terms like "core exercise" and "core activation" get a ...

The plank exercise is an old-school isometric core exercise that originated with yoga practices and has since been a standard part of mainstream bodyweight workouts. It's a top-shelf ab move that can ...

THE TRUE ROUTE to core strength—and to the hard, toned look many guys seek—has always been about more than crunches and hours of cardio. To shed belly fat and build brick-strong abs, you have to train ...

These 10 simple home exercises—squats, lunges, push-ups, burpees, planks, shoulder taps, crunches, deadlifts, step-ups, and ...

I’m not one to big up an exercise I don’t believe in. I’ll happily tell you sit-ups are low on my priority list of the best abs exercises to program for my clients, with or without weights. So when I ...

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

A strong upper body truly makes everyday life a breeze. Consider this: By regularly performing upper-body exercises, carrying an overflowing laundry basket up the stairs or moving your fave armchair ...

Poor form can make planks less effective and slow your progress toward your strength training goals. To add insult to injury, doing planks incorrectly can lead to an actual injury. Let's avoid that.