Pyramid intervals are the secret of successful runners! In the world of running, there are numerous training methods aimed at ...

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 ...

High-intensity interval training has become a staple in the fitness world because of its efficiency and ability to burn ...

Interval training is pretty tough work, but it's the best way to keep in shape when you don't have a lot of time on your hands. That said, if you want to do it right, The New York Times suggests you ...

Every once in a while, I get a reminder that Twitter really can be useful. In this case, it was a tweet from Andy Jones pointing out an interesting detail in a new study that I might otherwise have ...

Looking at differences in approach, including the varied Zone 2 sessions of top US pros Brandon McNulty and Matteo Jorgenson ...