# Can you estimate V02 max?

Discussion in 'Power Training' started by PSUcycling, Jun 27, 2007.

1. ### PSUcycling New Member

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I found a website that will take your age and best 5k time and estimate your v02 max. (i'm sure this isn't very accurate).

is there a way to do the same thing by inputing say, 5min power, weight, body fat etc?

i'm probably going to get test this year, but until then, just curious.

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2. ### meandmybike New Member

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You can get an estimate from an Astrand test (details on the Tacx website). However, the margin for error is so great I wouldn't place any store in the numbers it produces (it estimated my VO2 max as being 81ml/kg - much as I'd like to believe this my FTP tells me it ain't so).

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5. ### Alex Simmons Member

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I'd suggest using the steady state power level attained during a well paced pursuit like effort, so the final minutes of a 4 to 5 min effort would be suitable. It is only an estimate. I tried it and it wasn't a bad estimate.

6. ### daveryanwyoming Well-Known Member

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Thanks, that makes sense.

7. ### PSUcycling New Member

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could someone please explain either formula's metrics please? it needs to be dumbed down for me a bit i guess!

1.8 ((Power*6.12/Kg)+3.5)+3.5

1.8 = ? dist/duration?

thanks

8. ### jbvcoaching New Member

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Power is what I presume to be 5 minute power, "Kg" is bodyweight in kg. The rest is standard arithmetic. The other numbers (1.8, 3.5) are just numbers, no units.

So using myself as an example,
VO2 Max = 1.8 ((400 * 6.12/78) + 3.5) + 3.5 = 66.29

I just had a brain freeze, I'm pretty sure VO2 Max is expressed in mL/min/kg, not L/min/kg.

9. ### PSUcycling New Member

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ok, thats what i thought. I guess i was overthinking it!

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11. ### Snuffleupagus New Member

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Huh, given results previously obtained using running times the given equation (1.8 ((Power*6.12/Kg)+3.5)+3.5 ) seems to reflect more reality than anything I've seen for cycling.

I'll keep my pathetic numbers to myself

12. ### Woofer New Member

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Since these are your real numbers, have you had a VO2 Max test done recently, and if so, was this calculation in the ballpark?

13. ### mullerrj New Member

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Just curious, what will VO2max tell you for cycling? And, how will that information be useful for training, etc? I'm not being quizzical, I REALLY don't know the answer. I used to think it was just a measure of "fitness"- yes/no? Kinda like asking, "how much do you bench press?" as a way of finding how strong someone is. But for cycling, I thought "w/kg" was THE question to ask..to get a sense of "capability". Can you have a high VO2max for cycling and not be a very good racer? Thanks in advance. Rob

14. ### PSUcycling New Member

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Those v02 max numbers are calculated using your weight. So in a way, it does calculate w/kg.

its probably the best indicator of road performance, other than your Functional Threshold. 5min power is very important to road racing, ie making breaking ways, briding etc.

15. ### mullerrj New Member

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Thanks, always learning. Rob

16. ### jbvcoaching New Member

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I had a series of VO2 Max tests done in mid 1988, I always came out between 68-72 mL/min/kg. That was at sea level, and the numbers I posted are from 7000'. My best sea level numbers are from a few years ago (2003? 2004?), 440W for 5 minutes at 80kg.

So yeah, in the ballpark.

17. ### Woofer New Member

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Thanks for sharing!

18. ### daveryanwyoming Well-Known Member

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O.K., here's how that looks on Andy's power profiling chart using the weight adjusted version with the 1.8 coefficient.

Should give folks a whole new thing to argue about in terms of accuracy and racing levels

-Dave
P.S. I apologize in advance for the blatant download and edit copyright infringement Andy as I pulled this chart from CyclingPeaks site. Please don't sue me, I'm only a poor hack bike racer........

19. ### mullerrj New Member

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Wasn't Lance's FTP 6.5 w/kg? I don't even think his VO2max was that high- wasn't it more like 88? Be interesting to find out how this chart compares to real life measurements/data. Thanks for posting..very interesting.

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