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One for the numerically inclined (or very bored)
I've been looking at some different ways of measuring or predicting VO2max other than labs or races although I've used both of those before. When I can't afford a lab test I usually use the brianmac calculator based on race times which currently gives me a figure of around 45. I found this recent paper which claimed to have a good formula based on hr at a chosen jogging speed which successfully checked out against a proper maximal test. The formula is
VO2max (mL · kg-1 · min-1) = 58.687 + (7.520 x Gender; 0 = woman and 1 = man) + (4.334 x mph) - (0.211 x kg) - (0.148 x HR) - (0.107 x Age).
A while ago I did a steady run on a canal towpath at hr=136, speed 7.1mph and assuming I've read and used the formula correctly I come up with about 59 which is way too high.(my weight 60k, age 46).
The abstract of the paper and the original formula can be read here : Submaximal Treadmill Exercise Test to Predict VO2max in Fit Adults
Would anyone else care to give it a go and compare with some race predicted values? All my recent race times (3k, 5k and 10k) give me 45-ish.
I might have mistyped the formula in Excel (if anyone wants the excel they are welcome ). The formula is admittedly stated to be valid for 18-40yos. So if there is someone who is quite a different fitness/age/weight to me and can check it out that would be interesting. Playing around varying the figures it looks to not be very sensitive to the achieved HR (only dependent on 0.148*HR); for example if 7.1mph took me to my maximum hr currently of 174 (!) I still get a vo2max of 53.
The full article is pay per view and I haven't read it, its possible of course there is a typo in the abstract which would be unfortuate for the authors.