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.

Android: Researchers claim to have discovered the single most efficient exercise regimen, which is a form of very rapid interval training you perform on a stationary bike. Bike Interval Clock guides ...

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, ...

Interval Walking Training, or "Japanese Walking," is gaining popularity as a HIIT-style workout involving brisk walking intervals followed by easy strolling. Developed by Professors Nose and Masuki, ...