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 ...

This video features a workout timer specifically designed for use during personal workout sessions. It was created in response to strong demand for the timer previously utilized in the creator's ...

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 ...

High-intensity interval training is a workout technique that gets you a lot of bang for your buck. This type of workout serves as cardio and strength training, burning calories, boosting your ...

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 ...

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, ...

A couple of years ago, I wrote an article about the fine-grained nuances of interval training. According to Paul Laursen and Martin Buchheit’s telephone book of a text, Science and Application of High ...

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 ...

Every so often, a new type of workout seemingly takes the fitness world by storm. The latest in this long line of buzzy fitness fads: the Norwegian 4x4 workout, a high-intensity interval training ...