If you've bought into the hype and you don't need to do anything other than High-Intensity Interval Training (HIIIT) to stay healthy and fit, there’s a good chance you're missing out on your goals and ...

But a type of interval workout recently popularised by actress Jessica Biel could be the solution – with research showing it can improve fitness faster than traditional, steady-pace workouts, such as ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." High-intensity interval training (otherwise known as HIIT) may sound, well, intense. And it can be. But ...

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 ...

Health-conscious mid-lifers and 20-somethings may have ditched boozy late nights for oat lattes and excessive quantities of ...

I often hear from people who tell me how hard they are working to get lean and toned, but they just aren't seeing results. Here's the harsh truth: the word "toned" essentially means "muscle," and you ...

High-intensity interval training, or HIIT, is a great way to get in a fast, effective workout. This quick routine is helpful ...

High intensity interval training (HIIT) may be the optimal exercise for reducing body fat while maintaining muscle mass in ...

High-intensity walking exercise helped chronic stroke patients regain walking capacity compared with more moderate training, a pilot randomized trial showed. Some secondary measures of gait speed and ...

High intensity interval training (HIIT) is a popular workout style for fitness and weight loss. But too much HIIT can cause injury and burnout and stall gains, according to a personal trainer. 2-3 ...