If you’ve been feeding your core nothing but plain old planks and common crunches, chances are you're bored witless -- and all progress in the ab department has come to a standstill. As with all body ...

Ready to step outside your comfort zone... and up onto a plyo box? This super spicy power-building workout is tough and will challenge you in ways the most grueling long run can’t—and that’s on ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." READY TO GET some air? If you haven't incorporated plyometric jumps into your routine yet, you're missing ...

The squat is the quintessential lower body exercise for many folks that lift weights. It involves stabilizing your core and using the power of leg muscles to move the weight. There are many variations ...