Add Yahoo as a preferred source to see more of our stories on Google. Now, before you go grabbing that pump, you’re going to want to make sure you have the right ball size on hand. To do that, all you ...

Most of us don’t think about balance until we lose it. But physical stability is integral to our survival and well-being, says Robbin Howard, assistant professor of physical therapy at USC. “Balance ...

Did you know that crunches on a stability ball are 38% more effective? Hello summer six-pack! While you've probably seen the stability ball lurking in the corners of the gym, chances are you haven't ...

Too often people think about core workouts as a means to six- or eight-pack abs. But there are other, far more important, reasons to strengthen your core. A strong core will improve your overall ...

Don't just walk by your stability ball! It's one of the best fitness tools you can own, so put yours to good use with these incredibly effective moves. Get ready to target your arms, abs, butt, and ...