Vo2max calculation

[Simon Cirnski]

Hi guys.

Can anyone help me with ploting a chart with Vo2max. I want to make a chart to se Estimated Vo2max(i got that) an now I would like to plot  % of Vo2max based on  current power. That how I could check if my riders did hard enough rides when doing Vo2max intevals.

Thanks

SImion 

[Mark Liversedge]

On Sunday, 3 July 2016 11:26:40 UTC+1, Simon Cirnski wrote:

Hi guys.

Can anyone help me with ploting a chart with Vo2max. I want to make a chart to se Estimated Vo2max(i got that) an now I would like to plot  % of Vo2max based on  current power. That how I could check if my riders did hard enough rides when doing Vo2max intevals.

VO2MAX intervals are typically 5-8min efforts at maximal effort for that duration i.e. between 5min MMP or 8min MMP. Since VO2MAX is a physiological measure, it is estimated from maximal power efforts and uses units of ML/MIN/KG. These don't map directly to power.

I reckon you are probably prescribing intervals and want to know if they went hard enough?

I would say that for the efforts in question you would just compare the AP for an interval, with the maximal power they should be capable for an effort of that duration i.e. how close to a 100% effort for the duration was this interval, using the CP model.

This is a metric that is already available and called "MMP Percentage".

You can add it to the intervals summary in preferences.

Hope this helps,

Mark 

[Chris Aitken]

 
Apologies for dragging this up from the dead.

Which CP model does the MMP Percentage metric use? From the code it would appear to be the 2-parameter model. Furthermore, what range of dates does the unknown CP model consider this maximal power from?

A quick look at some of my rides (e.g. 1h3m, AP 131W) yields an MMP percentage of 53.6%, which assumes a meanmaxpower of 244W for 1h3m. Whilst I don't dispute this is possible from *all* my historic power data, it is certainly not realistic from what I have done (or the Extended CP believes I have done) within the past 6 months.

Researching through similar questions shows that this could be the CP model that I have preselected, & 90 days, though it'd be good to get some clarification on this as the numbers don't match.

Cheers,
Chris

[Ale Martinez]

El domingo, 30 de abril de 2017, 16:58:17 (UTC-3), Chris Aitken escribió:

On Sunday, 3 July 2016 12:38:26 UTC+1, Mark Liversedge wrote:

On Sunday, 3 July 2016 11:26:40 UTC+1, Simon Cirnski wrote:

Hi guys.

Can anyone help me with ploting a chart with Vo2max. I want to make a chart to se Estimated Vo2max(i got that) an now I would like to plot  % of Vo2max based on  current power. That how I could check if my riders did hard enough rides when doing Vo2max intevals.

VO2MAX intervals are typically 5-8min efforts at maximal effort for that duration i.e. between 5min MMP or 8min MMP. Since VO2MAX is a physiological measure, it is estimated from maximal power efforts and uses units of ML/MIN/KG. These don't map directly to power.

I reckon you are probably prescribing intervals and want to know if they went hard enough?

I would say that for the efforts in question you would just compare the AP for an interval, with the maximal power they should be capable for an effort of that duration i.e. how close to a 100% effort for the duration was this interval, using the CP model.

This is a metric that is already available and called "MMP Percentage".

You can add it to the intervals summary in preferences.

Hope this helps,

Mark 

 
Apologies for dragging this up from the dead.

Which CP model does the MMP Percentage metric use? From the code it would appear to be the 2-parameter model. Furthermore, what range of dates does the unknown CP model consider this maximal power from?

A quick look at some of my rides (e.g. 1h3m, AP 131W) yields an MMP percentage of 53.6%, which assumes a meanmaxpower of 244W for 1h3m. Whilst I don't dispute this is possible from *all* my historic power data, it is certainly not realistic from what I have done (or the Extended CP believes I have done) within the past 6 months.

Yes, 2-parameter model, using your configured CP&W' from the Power Zones range corresponding to the date of the ride.