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 ...

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, ...

Good news: starting your running journey doesn't have to require diving in head-first and sprinting for 30 minutes straight. If you’ve never been much of a runner (or you’re starting to get back into ...

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 ...

High-Intensity Interval Training (HIIT) has become one of the most effective fitness strategies in the United States for ...