If you’re looking for a way to boost your athletic performance, calorie burn, and fitness level, you may want to consider sprint interval training (SIT). Similar to high intensity interval training ...

In the theatre, intervals mean you get a tiny very expensive ice cream. In running, they’re not nearly as much fun but they are the secret to getting faster, fast. Going quicker over shorter ...

There comes a time in every runner’s life when it’s time to kick things up a notch. That means one thing and one thing only: interval training. There’s a reason loads of runners don’t like intervals.