Get ready to work out with trainer Jasmine Blocker, who will be leading this 10-minute total-core workout joined by Poofy Moffitino and Paris Nicole. No, you won't just be working your abs: this ...

Your core (that means both your back and abdominal muscles) is your source of power—seriously. It's also what helps stabilize your entire body, prevent low back pain, and impact your posture, helping ...

Your core (that means both your back and abdominal muscles) is your source of power—seriously. It's also what helps stabilize your entire body, prevent low back pain, and impact your posture, helping ...

Add Yahoo as a preferred source to see more of our stories on Google. When trying to reduce body fat and get in shape, many of us head straight for the nearest full-body mirror and lift up our shirts ...

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 ...

Confession: I'm a certified personal trainer, but I absolutely dread core work. (Anyone else?) My loathing could be because my core has always been one of my weakest muscle groups, or the burning ...