Want to learn how to master the Naomi Campbell-approved battle-ropes full-body cardio exercise? Here's exactly how it's done, straight from a trainer. And yes—it's so much harder than it looks. “This ...

Researchers find both high-intensity and moderate rope skipping improve VO₂max in young adults. Study: Effects of high-intensity interval rope-skipping on cardiorespiratory fitness, body composition, ...

There may, however, be a shortcut. High-intensity interval training ( HIIT) promises to get you fit with just a few minutes ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You’ve probably heard of high intensity interval training (a.k.a. HIIT), but have you heard of high ...