Interval training has become very popular these days, thanks to high-intensity interval training, or HIIT. Proponents of this type of exercise say it delivers many of the benefits of a much longer ...

The American Heart Association recommends that adults get "at least 150 minutes per week of moderate-intensity aerobic activity or 75 minutes per week of vigorous aerobic activity" — or a combination ...

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 ...

You can be on the path to fitness with no equipment needed, in as little as 20 minutes, just two or three times per week – it sounds like the start of a late-night infomercial, but High Intensity ...

High intensity interval training packs a hard workout into a short period of time, which makes it sound like it should be an efficient, superior way to work out. But HIIT doesn’t have as many ...

Jenny Hardman loves her daily workouts at Orangetheory and says she understands why they're USA Today's #1 Gym!

Runners can easily fall into a basic routine for their workouts: Lace up, hit the pavement, then cruise at a comfortable pace for as many miles as planned. This might feel good, but it’s not always ...

Mimi Jung set a goal of running a 15k next month as her goal for the Get Fit challenge. She had been working out regularly, but is changing up her routine for this new goal. Mimi has started High ...

“If you live near flatter terrain, or you don’t have those rolling hills, treadmill workouts can be hugely beneficial for a ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." RUNNERS CAN EASILY fall into a basic routine for their workouts: Lace up, hit the pavement, then cruise ...