By Coach Adolfo Salgueiro
It is interesting when you with your running buddies and they start bragging about their VO2Max number. “Mine is 41”, says Runner #1. “Mine is currently at 39 but it has been going up for the last 3 weeks”, comes back Runner #2. “I am down to 43 but have been up to 44 as recently as last month”, chimes in the Runner #3. Funny thing is that if you ask any of them what VO2Max is, you can pretty much bet that none of them will know.
These are the elements that conform VO2Max (British spelling used here)
VO2Max stands for the maximum (Max) volume (V) of oxygen (O2) that your body can utilize at maximum effort. It is obvious that the more oxygen your body can handle, the more efficient it is and the faster you should be able to run. Eliud Kipchoge has been measured at 75 while the fittest of my readers most likely be under 50.
VO2Max is measured as an absolute rate in liters of oxygen per minute (L/min) or as a relative rate in in milliliters of oxygen per kilo of body mass per minute (ml/kg/min). Yes, this is a little bit technical, well, more than a little bit. The point here is to understand that if you can barely grasp the concept and how this parameter is measured, you shouldn’t make it your end-all factor to measure your progress, let alone your value as a runner.
The VO2Max is a valuable tool if you know what you are looking at. But lately it has become overemphasized, primarily because watches now flash the number as if it were a badge of honor.
Unless your watch can be hooked to this machine, it cannot measure your VO2Max
VO2Max is tested in a specialized lab. While on a treadmill, with a mask covering your nose and mouth, while running to exhaustion, the machinery measures how much oxygen goes into your body and how much oxygen comes out. The difference between the two numbers while at maximum effort, is the maximum amount of oxygen your body can process at such speed, thus, your VO2Max. Your watch cannot measure this, regardless of how sophisticated and expensive it is.
In conclusion, VO2Max may work or not, I am not a sports scientist nor have read enough to know the extent of its reach. But what I do know is that it is not the end-all parameter to measure your progress or success. To me, a PR on my next 5K or marathon seems a much better way. And, once again, it CANNOT be measure by an equation on your watch.
It is not in the scope of this blogpost to advocate for or against VO2Max. It is not either to explain the science and value of the parameter, which, of course, does have a value.
If you want to learns more about the subject and are ready for a deep technical read, Steve Magness, head coach for the University of Houston, and an authority on the science of running, has a few articles on this, which I highly recommend. You can click on the links below to access them: