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 ...

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 ...

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 ...

Interval training is a great way to fit the recommended 30 minutes of exercise, five days a week, into a busy schedule. Essentially, it compacts your workout into short, intensive bursts so you can ...