# Vo2max estimation **URL:** \ **Category:** Feature Requests\ **Created:** [6 April 2022 10:43 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157 "2022-04-06T10:43:01Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Luisma\_Gallego\_Soy\_P](https://forum.intervals.icu/user_avatar/forum.intervals.icu/luisma_gallego_soy_p/32/26303_2.png) [@Luisma\_Gallego\_Soy\_P](https://forum.intervals.icu/u/Luisma_Gallego_Soy_P)\ **Post date:** [6 April 2022 10:43 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/1 "2022-04-06T10:43:02Z")
Is it possible to provide a vo2max estimate, apart from the garmin one, using this formula from the paper? [https://journals.humankinetics.com/view/journals/ijspp/17/1/article-p9.xml#.YPe9ca3LVCQ.twitter](https://journals.humankinetics.com/view/journals/ijspp/17/1/article-p9.xml#.YPe9ca3LVCQ.twitter) ---
**Author:** ![Olly\_Thomas](https://forum.intervals.icu/user_avatar/forum.intervals.icu/olly_thomas/32/28972_2.png) [@Olly\_Thomas](https://forum.intervals.icu/u/Olly_Thomas)\ **Post date:** [6 April 2022 10:52 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/2 "2022-04-06T10:52:35Z")
This would be great,. The estimation could sit on the ‘best efforts’ table on the /Power page and combined with the ability to plot this over time on the /Fitness page would be useful. I appreciate it would only be an estimate but its a data point I am interested in having in the platform. ---
**Author:** ![MedTechCD](https://forum.intervals.icu/user_avatar/forum.intervals.icu/medtechcd/32/40383_2.png) [@MedTechCD](https://forum.intervals.icu/u/MedTechCD)\ **Post date:** [6 April 2022 13:32 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/3 "2022-04-06T13:32:20Z")
For anyone else who wonders how this calculation works: By 5-min relative power output, they mean your 5-min max power divided by your weight, thus in W/kg It might seem obvious for others, but I just spent 20 min figuring this out 🤯 ---
**Author:** ![Gerald](https://forum.intervals.icu/user_avatar/forum.intervals.icu/gerald/32/28423_2.png) [@Gerald](https://forum.intervals.icu/u/Gerald)\ **Post date:** [6 April 2022 13:36 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/4 "2022-04-06T13:36:29Z")
There was a video posted that explains the protocol and calculation method. I’ll try find it and add the link, unless someone beats me to it. _edit: he mentions lactic acid (at 1:50),but it should be lactate, but it’s from 8 years ago, so perhaps excused. Also, there is mentioned to exclude the +0.435 from the equation due to it being factored in during the PPO test._ Found it. [![](https://forum.intervals.icu/uploads/default/original/3X/f/b/fb0cf68b3680b6a2d7d89df4654afbfa9d139838.jpeg "HOW TO CALCULATE YOUR VO2MAX: Serious Cycling by Numbers") ](https://www.youtube.com/watch?v=TWgPR8pb2do) ---
**Author:** ![Gato\_Felix](https://forum.intervals.icu/user_avatar/forum.intervals.icu/gato_felix/32/26578_2.png) [@Gato\_Felix](https://forum.intervals.icu/u/Gato_Felix)\ **Post date:** [6 April 2022 14:21 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/5 "2022-04-06T14:21:47Z")
Hi, What a pit that apparently I’m out of the catch because I’ve never had an average bigger than 8h/week and this is for 12h/w up… Thanks to @david I could easily get this info from Intervals. ![image](https://forum.intervals.icu/uploads/default/original/2X/0/0b50128f417b706bb4cb7e044baf31973c7da266.png) My biggest has been this last season with avg of 7.5h/w but if I roll back 3 years it goes down to 5.3h/w… Hey @david, would be nice if Interval showed the week avg direct on Totals 🙂 You guys can find this to be very helpful [MAP and FTP Calculator from ZwiftHacks.com](https://zwifthacks.com/app/map-ftp-calculator/) regards, ---
**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\ **Post date:** [7 April 2022 03:37 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/6 "2022-04-07T03:37:56Z")
This does look interesting. I will try get it done! ---
**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\ **Post date:** [8 April 2022 06:25 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/7 "2022-04-08T06:25:07Z")
I have implemented this on the /power page as @Olly_Thomas suggested. You can’t plot it over time yet. I need to do some more work for that. ---
**Author:** ![Olly\_Thomas](https://forum.intervals.icu/user_avatar/forum.intervals.icu/olly_thomas/32/28972_2.png) [@Olly\_Thomas](https://forum.intervals.icu/u/Olly_Thomas)\ **Post date:** [8 April 2022 07:00 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/8 "2022-04-08T07:00:40Z")
Nice! Thank you. Hopefully the plotting over time funcationality to can include plotting TTE also when ready 😉 ---
**Author:** ![Gerald](https://forum.intervals.icu/user_avatar/forum.intervals.icu/gerald/32/28423_2.png) [@Gerald](https://forum.intervals.icu/u/Gerald)\ **Post date:** [8 April 2022 07:22 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/9 "2022-04-08T07:22:54Z")
Thanks @david the measurement is expressed as **mL/Kg/minute** ![image](https://forum.intervals.icu/uploads/default/original/2X/9/98bad6c98bb381d3d7e06f13b2669b09d69ceb1d.jpeg) ---
**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\ **Post date:** [8 April 2022 08:04 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/10 "2022-04-08T08:04:01Z")
Fixed, tx. ---
**Author:** ![Luisma\_Gallego\_Soy\_P](https://forum.intervals.icu/user_avatar/forum.intervals.icu/luisma_gallego_soy_p/32/26303_2.png) [@Luisma\_Gallego\_Soy\_P](https://forum.intervals.icu/u/Luisma_Gallego_Soy_P)\ **Post date:** [8 April 2022 10:08 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/11 "2022-04-08T10:08:14Z")
TTE es justamente donde decae la curva de potencia ![image](https://forum.intervals.icu/uploads/default/original/2X/1/11b4850e0139955fdc683c2513b591066e163a78.png) ---
**Author:** ![Olly\_Thomas](https://forum.intervals.icu/user_avatar/forum.intervals.icu/olly_thomas/32/28972_2.png) [@Olly\_Thomas](https://forum.intervals.icu/u/Olly_Thomas)\ **Post date:** [8 April 2022 11:02 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/12 "2022-04-08T11:02:40Z")
> [@Luisma\_Gallego\_Soy\_P](#): > > TTE es justamente donde decae la curva de potencia Sorry, had to translate to English so hope this is correct > TTE is exactly where the power curve drops off If it is, yes I know that. I would like the TTE metric over time to be included as a data field to be able to plot on the /Fitness page so I can combine it with eFTP, eFTP w/kg, FTP, w/kg, VO2 estimate, W’bal etc to see progression and some analysis against training plan… ![image](https://forum.intervals.icu/uploads/default/original/2X/4/4a795448b9960650811401fb08ae328fb1e54ce0.png) ---
**Author:** ![Rob\_Cordray](https://forum.intervals.icu/user_avatar/forum.intervals.icu/rob_cordray/32/26121_2.png) [@Rob\_Cordray](https://forum.intervals.icu/u/Rob_Cordray)\ **Post date:** [8 April 2022 13:48 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/13 "2022-04-08T13:48:28Z")
This is really great, thanks David! ---
**Author:** ![David\_Z](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david_z/32/32681_2.png) [@David\_Z](https://forum.intervals.icu/u/David_Z)\ **Post date:** [9 April 2022 11:46 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/14 "2022-04-09T11:46:26Z")
Hi, really great work, Thanks! 😄 While for biking this seems spot on for me, for running (since the “power meter”/ run pod is not well calibrated) it’s a little bit off. Can you add a scaling factor (or offset 🤔 ) for the running calculation/ running power, to get a better estimate there ? ---
**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\ **Post date:** [9 April 2022 12:04 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/15 "2022-04-09T12:04:02Z")
I am not sure that this will be applicable at all for running power. If someone could find something similar for running I can use that? ---
**Author:** ![Luisma\_Gallego\_Soy\_P](https://forum.intervals.icu/user_avatar/forum.intervals.icu/luisma_gallego_soy_p/32/26303_2.png) [@Luisma\_Gallego\_Soy\_P](https://forum.intervals.icu/u/Luisma_Gallego_Soy_P)\ **Post date:** [9 April 2022 12:17 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/16 "2022-04-09T12:17:10Z")
Not applicable at running power ---
**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\ **Post date:** [9 April 2022 12:26 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/17 "2022-04-09T12:26:37Z")
I have hidden it for non-Ride sports to avoid any confusion. ---
**Author:** ![Martial\_Pottier](https://forum.intervals.icu/user_avatar/forum.intervals.icu/martial_pottier/32/51897_2.png) [@Martial\_Pottier](https://forum.intervals.icu/u/Martial_Pottier)\ **Post date:** [14 April 2022 07:39 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/18 "2022-04-14T07:39:05Z")
Awesome! 2 questions from myself: 1. Can it be sown on [Intervals.icu](https://intervals.icu/athletes) page, such as the eFTP? 2. Can the calculation be derived for all MAP efforts (e.g. 3m effort, 7min effort, 4m30s effort, etc.) for those who have a top MAP not based on a CP5? Thank you! ---
**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\ **Post date:** [14 April 2022 15:46 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/19 "2022-04-14T15:46:37Z")
The method in the paper only works with 5m PPO so not other durations. I could possibly put something on the /athlete’s page using last month or 42 days of power data. But that would depend on having done a max 5m effort in that time window. ---
**Author:** ![Garf](https://forum.intervals.icu/user_avatar/forum.intervals.icu/garf/32/14659_2.png) [@Garf](https://forum.intervals.icu/u/Garf)\ **Post date:** [21 October 2022 15:44 UTC](https://forum.intervals.icu/t/vo2max-estimation/10157/20 "2022-10-21T15:44:56Z")
This paper: [https://www.researchgate.net/publication/319947872\_Cycling\_Power\_Outputs\_Predict\_Functional\_Threshold\_Power\_And\_Maximum\_Oxygen\_Uptake](https://www.researchgate.net/publication/319947872_Cycling_Power_Outputs_Predict_Functional_Threshold_Power_And_Maximum_Oxygen_Uptake) Estimates VO2Max based on age and FTP. Formula is: `VO2max (ml. kg -1. min -1 ) = age (y) × -0.313 + FTP (W. kg-1 ) × 11.733 + 27.056` So you could calculate it for everyone you know age, weight and eFTP for. [Next page](https://forum.intervals.icu/t/vo2max-estimation/10157.md?page=2)