Runkeeper was placed on Earth by supreme beings of some sort. Its programmable, GPS-tracked interval runs make the iPhone into a serious, and entirely thoughtless, training tool. But Runkeeper’s ...

Tabata training workouts alternate between 20-second intervals performed at max effort and 10-second stages of rest, repeated 8 times in four-minute period. Quick history lesson: Tabata training was ...

Many runners strive to get faster, and boosting VO2 max is often part of that goal. One way to achieve both: The interval ...

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 ...

While the past few years have seen the rise (and rise) of low-intensity workouts, like Pilates and yoga, grow in popularity, there’s still a very valid case for adding in some high-intensity interval ...

Working out at home isn't always easy. Although convenient, small spaces, ample distractions, and a lack of equipment can quickly put a damper on your fitness regimen. That said, whether you struggle ...

When 3 p.m. rolls around, my energy levels are usually at a low — the midday slump is in full effect, and another cup of coffee would only deliver a case of caffeine jitters. What is helpful though, ...

When I first heard about a fitness routine that promises the heart-pumping benefits of a sweaty bike ride in seven minutes, I brushed it off as little more than hype. I was wrong. Turns out it's ...

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 ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Doing HIIT workouts can improve your cardiovascular and ...