Directions: Perform each exercise for 30 seconds, and repeat. Cool down with a few minutes of stretching (find inspiration here). This cardio move is great for runners; it not only works the lower ...

You’ve seen them at the gym – the cardio bunnies who spend hours on the treadmill but never touch a weight, and the muscle-obsessed lifters who break into a cold sweat at the mere mention of running.

Some people prefer to stay in the weight room to work out, while others prefer cardio events like running, biking or swimming in the great outdoors. Both approaches are great ways to get exercise, but ...

This core cardio energizer is an effective fat-loss shock to the system that is perfect for your cardio days or when you're just not feeling up to lifting. You'll feel like a sweaty, accomplished mess ...

If you like full-body workouts that focus on pull-push-legs-core, this circuit of these fitness components will challenge you, especially if you go heavy on the lifts and push your maximum on the ...

You've got your jumping jacks dialed, and you know how to do a plank . . . but have you tried plank jacks? This intermediate bodyweight move has likely cropped up in your workouts at some point — and ...

What if you could squeeze the best of both worlds—strength and cardio—into each workout without having to choose? That’s ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Whether you want something that’s easy on the joints or to help support your glute gains goals, stair ...