Anyone know how accurate the Polar HRM OwnIndex results are? Does the values stack up with any research?
Never tried it because I think it’s dumb. Vo2max isn’t related to resting HR, so I have no idea what the basis for it is.
I would guess it’s about as accurate as the 220-age for max HR.
It adds one other parameter and that is resting heart rate. You will score better if you have a very low heart rate vs. the rest of the parameters you put in. I suppose the lower the beat the more fit you are and the higher the VO.
For one thing, it’s strongly dependent on the “activity level” you specify in the setup. When I input that I was very active, I got an OwnIndex in the 60s; when I tried inputting that I had low activity, my OwnIndex dropped into the 30s, I believe. So, if it’s of any value at all (of which I’m skeptical), it’s probably only in tracking how it changes over time–not as an absolute measure. Nate
It is not accurate!
It is based on a mathematical algorithm that used to be published on the Polar website, but is no longer available. In fact, the term I used (“mathematical algorithm”) exaggerate reality as it is a very simple equation. This formula tries to approximately predict the VO2Max. In my mind this is a marketing gimmick similar to many other features that Polar provides (e.g. calories). They are all based on one accurate parameter, that is, HR and many approximations based on statistical tables. Your only way to measure these things accurately is in a lab. It is also possible to use a basic HR monitor, writing down some figures and then to calculate your own index. But of course it is easier (and cooler) to spend more and not bother with all the math.
However, if you feel that it provides you with some index of progress and/or motivates you, then it worth it.
Pluto