The Bit Timer iOS app uses three color-coded sliders to set workout exercise and rest times, as well as how many times the workout repeats. The Bit Timer iOS app uses three color-coded sliders to set ...

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 ...

We like interval training because you can pack a lot of effective exercise into a short amount of time. In fact, you can use it to do one of the most effective routines in only 20 minutes. Regardless ...

You’re looking to push every ounce of energy you have into your current HIIT (High-intensity Interval Training) workout. As the intervals pass you buy, the music constantly changes to fit your tempo.

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, ...

If you want to become a fitter and faster runner, especially if you have a target race in mind, the best thing that you can do is select and follow a structured training plan that aligns with your ...

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 ...

Throughout the long history of the sport of running, training innovations have come primarily from athletes and coaches, not scientists. With few exceptions, it’s been the folks in the trenches who ...