HIIT, or high-intensity interval training, is increasingly popular, and it provides plenty of benefits, from torching calories to increasing your VO2 max and overall athletic performance. SIT, or ...

Sprint interval training, or SIT, is super trendy right now. It’s a great way to improve your running speed and to get in a hard interval workout, and I’ll explain exactly how. But I also need to ...

Fitness and running experts agree: sprinting might be the best exercise to promote fat loss and muscle gain, and achieve body ...

Sort of. Sprinting is essentially explosive resistance training using your own body weight, so every sprint activates your glutes, quads, hamstrings, calves, and core, allowing you to maintain muscle, ...

For those who live to sweat — but maybe want a chance to fully catch their breath — SIT is the new HIIT. HIIT, or high-intensity interval training, includes bursts (typically 30 seconds to a few ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Losing weight and gaining muscle are two major feats in and of themselves, but if your goal is to achieve ...

We all grow older. There is nothing we can do about that, but the quality of those years is within our control, as recent ...