My glutes are still on fire.

If you are looking to knock out an intense cardio workout and build some strength at the same time, it’s hard to beat working out on a rowing machine. These devices—also known as rowing ergometers or ...

Most gyms have an elliptical machine, otherwise known as a cross trainer. And chances are, someone's on it—and using it incorrectly. Sounds good, right? Ahead, fitness experts weigh in on everything ...