Run 30 seconds hard at your VO₂ max pace. Follow that with 30 seconds of very easy running (with the short interval, your ...

Shortening my intervals helped me focus on my cadence, transitions, heart rate, and pace, so I could run more efficiently and ...

I used to take lots of shortcuts when training for a race. Often those shortcuts involved brief interval sessions and hill sprints, and very few long, slow and steady runs. My theory: the faster I ...

Interval running condenses the powerful effects of regular running into shorter, high-intensity bursts. Research shows it can improve cardiovascular health, regulate blood sugar, and reduce body fat ...

Is your running history over the years littered with more stops, starts, detours and long (long) pauses than the most meandering trail? Is the only incline you've encountered lately the inclination to ...

Follow these invaluable guiding principles to arrive at your start line feeling fit, fresh and focused ...