Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? That said, different ab machines function in very different ways, so it's ...

New York Post may be compensated and/or receive an affiliate commission if you click or buy through our links. Featured pricing is subject to change. With the new year on the horizon, it’s inevitable ...

If you want to strengthen your core, doing hundreds of crunches won't help. In fact, you should stop doing crunches because they aren't good for your back. If you want a strong core, you've got to ...

16 December 2007Fancy a tireless workout without getting into the complexities of using complicated fitness machines. A machine that not only helps you get into shape but also resolves your health ...