When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Countdown Interval Timer is a fitness app available for Windows 10 PC and Mobile that is designed ...

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 ...

Tabata training workouts alternate between 20-second intervals performed at max effort and 10-second stages of rest, repeated 8 times in four-minute period. Quick history lesson: Tabata training was ...

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, ...