Experts share the best types of interval training to help you improve both as a long-distance runner and an all-around athlete.

Lungs burning, legs ceasing up – no one actually enjoys interval training. Pushing through the pain is the only way to unlock faster PBs and achieve a higher level of fitness ...

Whether you’re a 5 or a 15-minute mile runner, the desire to go faster is in every runner’s DNA. But what’s the best way to add a bit of pace to your game? One answer is to build interval training ...

A solid metric to know, considering its influence on race performance. Many coaches argue that lactate threshold is one of, if not the, biggest performance predictor. It determines how fast you can ...

Polarized training is based on a clear 80/20 distribution: 80% of your training at low intensity (max HR 65–75%) and 20% intense (at or above the anaerobic threshold), while the middle zone is largely ...