HIIT is not the only or the best way to improve your cardio endurance and heart health. Steady, repeatable exercises can ...

Plus, the surprising benefits of turning the intensity down a notch.

Presented by Athleta, this HIIT workout is basically a guaranteed confidence boost. Celebrity trainer Amanda Butler leads you through two different rounds of full-body interval training, helping you ...

UNLESS YOU'VE BEEN living under a weight rack for the past decade, you’ve heard of HIIT. Short for high intensity interval training, the protocol involves alternating short bouts of all-out effort ...

They’re so easy to incorporate into your week.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." IF YOU’RE LOOKING for a style of workout that will push you to your limits without needing to exercise ...

If you had to pick the better runner — a sprinter or a marathoner — the answer would depend on the type of race. In a 200-meter race, the sprinter will have an edge over the marathoner, but if it ...

Cardio is more than just running laps or hopping on a bike. It's any movement that gets your heart pumping, your body sweating and your energy levels soaring. Whether you're chasing a weight loss goal ...

Welcome to Class Fitsugar's newest season! We're back in the studio, and our new trainer Natalie White will be leading you through a 30-minute cardio HIIT workout, joined by Paulyn Baens and Maya ...

Interval training is great for boosting cardiovascular endurance and promoting overall fitness. Our fitness expert, Judd NeSmith, NASM-CPT, PES and founder of Serious Fitness, explains interval ...

Walking? Lifting weights? Does it matter what zone you’re in? I have answers.

Soft cardio is simply regular cardio done at a slow, relaxed pace so as to spare your body from repetitive impact — hence the ...