No matter how many times I’ve been told (or written about) the importance of a slow run, I cannot translate it into my training. This is not to say I am the fastest runner. My half marathon goal time ...

You can run all the miles on the road and do as many speed sessions on the track that you want, but the secret to getting that next PR likely comes in the gym. And we don’t mean more treadmill runs.

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 ...