Advanced: the Guardian guide to running The Guardian

The first of our advanced running guides is a threshold run. Download the entire series via iTunes

The second of our advanced running guides is another threshold session. Download the entire series via iTunes

Our third advanced running guide is for an interval session. Download the entire series via iTunes

Our final advanced running guide involves hill reps. Download the entire series via iTunes

These four podcasts are designed for more confident runners who want to take things to the next level - building speed-endurance; strength and stamina; and helping to improve race times