Enter any gym, and you’ll see the same core workout: crunches, situps, ab machines, and endless twisting exercises. The logic seems obvious—if you want stronger abs, more visible abs, you train them ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Our movement is not one-dimensional, so your workouts shouldn’t be either.

Our movement is not one-dimensional, so your workouts shouldn’t be either. Every day, your body bends, reaches, flexes, and extends—but it also twists, turns, and rotates. You do this when checking ...

Add Yahoo as a preferred source to see more of our stories on Google. Enter any gym, and you’ll see the same core workout: crunches, situps, ab machines, and endless twisting exercises. The logic ...