The good news is that there's no one-size-fits-all magic answer. The effectiveness of your workout for weight loss depends on several factors, not just the number on the clock. But let's break down ...

Skipping leg day is a non negotiable, but sometimes an hours workout just isn’t doable, even 45 minutes can be a stretch. That’s where this high intensity resistance training (HIRT) workout comes in – ...

There are many different ways to get fitter and stronger and while lifting weights or doing explosive HIIT workouts that involve a lot of jumping around are undoubtedly both effective ways to shape up ...

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 ...

Tabata is designed to push your limits, and this 30-minute workout is no exception. For anyone new to Tabata, it's basically a more intense form of HIIT, alternating between bursts of high-intensity ...

High-intensity interval training (a.k.a., HIIT) is a triple threat: “It’s quick, easy, and effective,” says Angela Gargano, a certified trainer and creator of Strong Feels Good & Pull-up Revolution.