estimating vo2 max

[postal_bag]

Is there a formula to estimate vo2 max using results from a MAP test?

 

[PowerPunk]

Is there a formula to estimate vo2 max using results from a MAP test?

I think the proper way is to fart in a bag and measure the O2 levels, then subtract that from ambient O2, or something like that.

 

[Andy/RST]

Keen, Passfield and Hale (Don't know the year sorry) came up with the following formula from Kingcycle tests but the concept would be the same whatever ergometer you used providing it was an accurately calibrated and credible piece of equipment......

VO2 max (L/min) = 0.011*MAP (W) + 0.08

If you multiply the result you get from this by 1000 to get VO2 max in millilitres and then divide it by your body mass in kg you will get VO2 max in the weight adjusted units (ml/kg/min)

As an example my MAP a few months ago was 335W which gives me...

0.011*335 + 0.08 =3.765 L/min
Multiply by 1000 = 3765 ml/min
Divided by my body mass (65kg) gives me 57.9ml/kg/min

Hope that helps

 

[ric_stern/RST]

Keen, Passfield and Hale (Don't know the year sorry) came up with the following formula from Kingcycle tests but the concept would be the same whatever ergometer you used providing it was an accurately calibrated and credible piece of equipment......

VO2 max (L/min) = 0.011*MAP (W) + 0.08

If you multiply the result you get from this by 1000 to get VO2 max in millilitres and then divide it by your body mass in kg you will get VO2 max in the weight adjusted units (ml/kg/min)

As an example my MAP a few months ago was 335W which gives me...

0.011*335 + 0.08 =3.765 L/min
Multiply by 1000 = 3765 ml/min
Divided by my body mass (65kg) gives me 57.9ml/kg/min

Hope that helps

Damn you Andy i'd been trying to locate that abstract in my files... Was just going to send an email to Louis!

The only thing to remember with that formula is that the Kingcycle that was used for that abstract over estimated power (compared to an SRM Science) by ~ 10%...

Ric

 

[Andy/RST]

Damn you Andy i'd been trying to locate that abstract in my files... Was just going to send an email to Louis!

The only thing to remember with that formula is that the Kingcycle that was used for that abstract over estimated power (compared to an SRM Science) by ~ 10%...

Ric

You'll have to start getting up earlier Ric

I just couldn't remember what year it was done (bit strange that it isn't printed on the abstract)

 

[postal_bag]

Thanks. That's what I was looking for. I couldn't seem to get anywhere with the farting in a bag method, however.

 

[postal_bag]

I've read that peak vo2 max levels are achieved after several months of high intensity training and this level is limited by genetics. The goal then becomes to increase lactate threshold so that it is a higher percentage of vo2 max.

This has me wondering.....if I am able achieve a higher level on a MAP test after a couple of months of training, can I assume that my vo2 max level had not yet peaked at the time of the prior test?

Simply put, does a higher result on a MAP test ALWAYS indicate further increases in vo2 max?

Conversly, once vo2 max has peaked, will no higher levels be achieved during MAP testing?

 

[postal_bag]

Simply put, does a higher result on a MAP test ALWAYS indicate further increases in vo2 max?

Conversly, once vo2 max has peaked, will no higher levels be achieved during MAP testing?

Sorry for my confusion. Upon thinking about it the answer has to be 'no' on both counts. Would this imply that the vo2 max estimate is most accurate up to the point in training where vo2 max peaks? Thanks again.

 

[PowerPunk]

Sorry for my confusion. Upon thinking about it the answer has to be 'no' on both counts. Would this imply that the vo2 max estimate is most accurate up to the point in training where vo2 max peaks? Thanks again.

sorry for the fart thing, couldn't resist it.

I agree with postals question though - it seems that linking MAP to VO2max is over simplistic, in that MAP (i would think) is more closely linked to AT (?), and AT isn't necessarily linked to VO2 max. Coundn't you have someone with MAP at 325 watts that is very well trained, and someone else with an MAP of 325 watts that is poorly trained (i want to be that person) and their actual VO2max would be very different?

I have seen another way to estimate VO2max, can't remember the name of the method, but it involved riding with increasing power levels on standard intervals, and recording HR and ppower at the end of each interval. The candence had to be very low (like 50 or 55, for what reason I don't know) and the data had to be collected below AT. You then graph the data, extrapolate to max HR, and that is supposed to estimate VO2 max. (or something like that, it's been a while). I tried it a few times, got a pretty big range of results. seemed a little hokie.

 

[Roadie_scum]

Damn you Andy i'd been trying to locate that abstract in my files... Was just going to send an email to Louis!

The only thing to remember with that formula is that the Kingcycle that was used for that abstract over estimated power (compared to an SRM Science) by ~ 10%...

Ric

Which means you should multiply your MAP figure by 1.1 to use the formula if you want to use it and you tested on a properly calibrated machine?

Any ideas on the standard deviation, etc? Don't tell me... going to waste my life looking up the paper now...

 

[ric_stern/RST]

Which means you should multiply your MAP figure by 1.1 to use the formula if you want to use it and you tested on a properly calibrated machine?

Any ideas on the standard deviation, etc? Don't tell me... going to waste my life looking up the paper now...

Hey Scum!

it's only a short abstract, maybe a paragraph from memory -- i'll have a look through my files and see if i can locate it for you. give us a few hours! or maybe Andy has it to hand?

Ric