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

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 ...

If the goal of your workout is to walk away with a chiseled six-pack, you’re missing the point. A strong core results in fewer injuries, better posture and balance and less back pain. To perform well ...

Katrina Carter, DPT, FNS, is a licensed travel physical therapist. She specializes in orthopedics and has a passion for providing education on nutrition for healing and overall health and wellness.

"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 ...

Case in point: You rely on your core muscles to carry you through the miles. And research shows that core strength training can improve the force you put into your steps, your overall energy transfer, ...

You don’t need to crank out endless situps or planks to train your core. In fact, some of the best core exercises don’t look like traditional abs movements at all. Think weighted carries and ...

New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! Subscribe today. Your core is, ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Lie on the mat with your arms extended straight up.

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.

No offense to sit-ups, planks, and hollow holds, but basic core exercises can feel drab day after day. They work the abdominals, but if you’re looking for stronger, sculpted abs, let me introduce you ...

Seeing that nice six-pack in your reflection is the rewarding result of all your hard work. The visibility of my abs has varied over the years depending on how I decided to eat and exercise around ...