Durability - the fourth dimension of endurance physiology?

After giving their excuses for recording a week later than planned, Dan & Owain delve into Durability. As they discuss, durability is a growing area of research and particularly impacts marathon (and ultra) performance. But how do you measure it, and how do you improve it? A new mini-series is announced to close the show... https://forms.gle/XGmxsR6dsanikRSX7