VO2 max and “Zone 2” are all the rage right now, with people like Peter Attia and Andrew Huberman podcasting about it and your training buddies dropping it in to every conversation! Since you want to be the fittest you can be, naturally you want to know the full scoop.

So this article is all about VO2 max, what it is, why it matters and how to develop it.  

Anyone training with science will be using a heartrate monitor and power/ pace to most accurately guide their training. However, “instinct” and a “sense of effort” are also key skills to bring to your training and race pacing. The more information you have to hand, the better the process. There are also those times when your damn HRM won’t work for some unknown reason and it’s usually when you want it the most!!! In these cases, “RPE” (which is the Rate of Perceived Exertion) is a really useful fall back option….