Hitting the pavement is, unsurprisingly, most runner’s go-to cardio workout, but introducing cross training into your weekly routine can be a game-changer in improving performance and reducing injury.

From core strength to full-body endurance, this winter sport works muscles you didn’t even know existed.

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 ...

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Body-weight exercises are ...