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JMG-DTF Cycling VO2 Max


A datafield which calculates in real time your VO2 and VO2 max during bike courses (one field layout).</p><p>A similar datafield, but more simple (only displaying VO2 max), can be found here:</p><p></p><p>You can get a similar data field for running here:</p>


Version 1.71</p><p>NEW: back to the basics, with no display of speeds, cadences, replaced by the VO2 max smoothed on all outputs. It is this new VO2 max that you should now consider as your real VO2 max. This new value is also saved in the FIT file at each run</p><p>NEW: added two new VO2 gauges on the big screen devices (see pics for more details)</p><p>NEW: added time + battery + GPS signal quality for small screen devices</p>

Weitere Informationen


Diese App muss auf Folgendes zugreifen:

  • Aufzeichnung zusätzlicher Informationen in Aktivitätsdateien
  • Ihr Garmin Connect™-Fitnessprofil
  • Approach® S60 Approach® S60
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  • Descent™ Mk1 Descent™ Mk1
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  • Edge® 1030 Edge® 1030
  • Edge® 1030, Bontrager Edge® 1030, Bontrager
  • Edge® 520 Edge® 520
  • Edge® 520 Plus Edge® 520 Plus
  • Edge® 820 Edge® 820
  • Edge® Explore Edge® Explore
  • Edge® Explore 1000 Edge® Explore 1000
  • Edge® Explore 820 Edge® Explore 820
  • ForeAthlete® 735XTJ ForeAthlete® 735XTJ
  • Forerunner® 230 Forerunner® 230
  • Forerunner® 235 Forerunner® 235
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  • fēnix® 3 fēnix® 3, quatix® 3, tactix® Bravo
  • fēnix® 3 HR fēnix® 3 HR
  • fēnix® 5 fēnix® 5, quatix® 5
  • fēnix® 5 Plus fēnix® 5 Plus
  • fēnix® 5S fēnix® 5S
  • fēnix® 5S Plus fēnix® 5S Plus
  • fēnix® 5X fēnix® 5X, tactix® Charlie
  • fēnix® 5X Plus fēnix® 5X Plus
  • fēnix® Chronos fēnix® Chronos
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  • vívoactive® vívoactive®
  • vívoactive® 3 vívoactive® 3
  • vívoactive® 3 Music vívoactive® 3 Music
  • vívoactive® HR vívoactive® HR
Durchschnittliche Bewertung: (51 Bewertungen)

Leonello De Valerio
13. Februar 2019 | Version 1.66

On Garmin Edge 820 the training effect is not Display. I have a heart sensor and a powermeter fsa powerbox. I await the next upgrade

Antwort des Entwicklers
14. Februar 2019, Surfy66

Hello Leonello and thanks for your comment. First, this functionality works fine with all the devices supporting TE management. There are 2 models of Edge 820 (Edeg 820 and Edge 820 Explore) but it seems that the Edge 820 Explore does not calculate the Training Effect, as shown in this document ( I plan to delete / replace this value for all devices that do not support this TE data.

Luigi G.
10. Februar 2019 | Version 1.66

Hello, I have got another question. That's a great app, but on my Edge 820 the training effect is not displayed (the field always says 0). Was could be the reason? Till now I have used it only in indoor session (do not know if this can have an impact). Many thanks

Antwort des Entwicklers
14. Februar 2019, Surfy66

Hello Luigi and thanks for your comment. First, this functionality works fine with all the devices supporting TE management. There are 2 models of Edge 820 (Edeg 820 and Edge 820 Explore) but it seems that the Edge 820 Explore does not calculate the Training Effect, as shown in this document ( I plan to delete / replace this value for all devices that do not support this TE data.

Hans ter Horst
27. Januar 2019 | Version 1.62

Appears to be very accurate and fills a bit gap left by Garmin; thank you for making this available to us!

Luigi G.
17. Januar 2019 | Version 1.62

Hello.Sorry for the seemingly stupid question. Does this app need the VO2Max computed by my Edge820? And if yes, I need a power meter otherwise this would not work. Is that correct? Thanks

Antwort des Entwicklers
18. Januar 2019, Surfy66

Hello and thanks for your question. This data field does not need the computed Garmin VO2 Max to work, it's a standalone datafield that calculates its own VO2 Max. And, this datafield can calculate your VO2 Max both with a power meter or a cardio sensor so, no need to have such device to use this datafield.

Juan Pavicic
8. Januar 2019 | Version 1.62

Hi, my query. How can I do to see the Vo2max data from the file generated in other analysis portals? Thank you very much from Argentina.

Antwort des Entwicklers
9. Januar 2019, Surfy66

Hello Juan. Thanks for your comment. Unfortunately, Garmin does not provide any compatibility to export new custom FIT data to other platforms, like Strava for example. So, custom data, like the VO2 max calculated from my data field, can only be seen in the Garmin environment.

Ronald Licata
23. Dezember 2018 | Version 1.62

This app is terrific. It tracks and graphs every important aspect of every ski run. All you have to do is start it at the start of your ski day and the app does the rest. Ron

7. November 2018 | Version 1.62

Hi, Could this be used for calculating vo2max during motocross riding? Indication maybe if not exact? Or speed will be to high? Current Garmin standard vo2max (I chose cycling outdoors as activity type when I ride mx) seems to work decent at least.

Wellington Penteado
14. Oktober 2018 | Version 1.60

Hello, I just installed on my Garmin 820, but on HR it shows % instead rate even I had setup that on Garmin Connect Mobile. Is there any procedure to show the HR rate instead % ?

Antwort des Entwicklers
15. Oktober 2018, Surfy66

Hello and thanks for your feedback. The issue is fixed with the new release 1.61. Sorry for this inconvenience.

Pouyaud Jacques
4. Oktober 2018 | Version 1.60

Tres bonne appli hélas, depuis la denière mise à jour, j'ai perdu la visibilité sur mon garmin edge 1030 je ne sais pas ce que j'ai fait de mal, mais je n'ai plus ce champs de valeur qui s'affiche sur le edge par contre sur garmin connect, je peux voir la courbe de vo2 max, mais les valeur ont disparue des statistique de la session (valeur moyenne et max)

Antwort des Entwicklers
4. Oktober 2018, Surfy66

Merci Jacques pour votre commentaire. La dernière mise à jour du 02/10 ne l'a pas été sur mon initiative mais sur celle de Garmin (mise à jour automatique des applications du store). Ceci dit, sur mon propre compteur, et après mise à jour de tout aux dernières versions (y compris ce datafield), tout fonctionne parfaitement comme avant. Cela doit donc possiblement provenir d'ailleurs, mais pas du datafield proprement dit, aucune raison puisque je n'ai apporté aucune modification qui pourrait expliquer ce dysfonctionnement. Mais vous pouvez me contacter directement en mp pour voir si l'on peut faire quelque chose.

Sergi Monsegur
27. September 2018 | Version 1.60

Very nice app, thanks so much!

14. August 2018 | Version 1.55

Tres bonne application. Je l'utilise depuis plusieurs sortie et je la trouve relativement correcte sur les donnés. Petit bug au niveau de la vo.max qui ne se reinitialise pas a chaque sortie( peut etre voulue pas le développeur ) Petit detail a l'amélioration plus que facultative mais serait il possible de rajouter le fait de pouvoir débloqué le badge "amelioration de la vo2..." ou cela est strictement réservé aux produit par defaut dz garmin ? Bon developpement Continué Sportivement

Antwort des Entwicklers
14. August 2018, Surfy66

Merci Alexandre pour votre commentaire. 1- ce n’est pas un bug en effet: pendant les N premières minutes du calibrage, j’affiche la dernière valeur de la VO2 Max calculée lors de la précédente sortie, pour rappel 2- Garmin ne nous donne malheureusement pas la possibilité d’intervenir sur ce genre de paramètres, du moins pour le moment, mais peut-être dans le futur...

Frank Ekeler
10. August 2018 | Version 1.55

Seems to work

31. Juli 2018 | Version 1.55

Avec vivoactive HR je n'arrive pas à faire fonctionner. Avez vous une procédure d'installation. Ca dit pourtant qu'il est télécharger et synchronisé. Je vais ou ensuite pour faire apparaitre le VO2 Max?

Antwort des Entwicklers
31. Juli 2018, Surfy66

Merci pour votre commentaire. Ceci est un datafield et donc, en tant que tel, il ne peut fonctionner. Vous devez donc l'intégrer dans un profil sportif (vélo probablement) en tant que nouveau champ IQ. Cette procédure est indiquée dans le mode d'emploi de votre montre

Tailwind Turner
24. Juli 2018 | Version 1.55

Very nice, love it. I wish it would set my vo2max in the CIQ cycling vo2max section though. Question: is it possible to get weight and RHR from CIQ instead of setting it by hand?

Antwort des Entwicklers
25. Juli 2018, Surfy66

Thanks for your comment Stefan: 1- we cannot modify the Garmin VO2 max, it's a protected data and Garmin does not allow us to modify it; 2- the datafield already get automaticaly these two value from the profile but, I added the possibility to force them just in the case they were not filled in into the profile, or there were a problem to get them.

15. Juli 2018 | Version 1.55

perfect data field - nice data thank s to developper

Antwort des Entwicklers
17. Juli 2018, Surfy66

Thanks for your nice comment

30. Juni 2018 | Version 1.55

Excellent datafield, fonctionne parfaitement sur Edge 820, la valeur de la VO2 max calculée est très fiable, et on peut l'avoir en permanence affichée à l'écran, un must have !

Antwort des Entwicklers
17. Juli 2018, Surfy66

Merci. Content que vous soyez ravie !

6. Juni 2018 | Version 1.53-upd5

Works perfectly fine, thank you! I only hope that the VO2 max measured is reliable enough (it differs from the Garmin estimate by 6ml: 50 vs 44).

🚲 😊 Uncle Bernd 😊 🚲
15. Mai 2018 | Version 1.53-upd4

I have the Vivoactive 3 but this App doesn't work unfortunately! I did download the App and of course I synconised my watch. What did I wrong please?

Antwort des Entwicklers
17. Juli 2018, Surfy66

Hello. You need to insert this datafield into a sport activity otherwise, you cannot use it as a standalone app.

Peter Jonsson 🇸🇪🏊‍♂️🚴‍♂️🏃‍♂️
29. April 2018 | Version 1.53-upd4

I like it very much. My Fenix5 tells me that I got 39 VO2max but the app tells me I'm close to 46. Thank's

Rafal Doboszynski
26. April 2018 | Version 1.53-upd4

Very good app. I hope that it shows reliable results. I'm missing MAX and Min values on graph in Garmin Connect app.

22. März 2018 | Version 1.53-upd3

Funktioniert soweit gut: aber ich glaube nicht, dass ich als Hobbyfahrer 75 vo2 max habe... laut EDGE 1030 sinds 54... was mach ich falsch? Einstellungen sind richtig... hab ich etwas übersehen?

Antwort des Entwicklers
22. März 2018, Surfy66

Hello and thanks for your comment. First of all, the DF uses two calculation methods (HR or power) and retrieves the data from both sensors but, sometimes, there may be some erratic values from these sensors that the DF will consider as good values so, if you get some bad max HR or max power, the DF will calculate the VO2 max by integrating these wrong data. If you experience such issue, you would prefer to take in consideration the average VO2 instead of the VO2 max, unless there is too much bad data and then, the average value will be wrong too. Unfortunately, It's actually really hard to get around such issue by coding.

Pablo Aparicio
22. Februar 2018 | Version 1.53-upd1

¿Esto es fiable y sirve como referencia? A mi me pone más de 50ml de máximo (poco menos de 50ml de media) y me parece demasiado para lo mal que considero que estoy. No le puedo dar más estrellas sin saber si funciona bien o no.

Arjan Meijerman
27. Januar 2018 | Version 1.53

Hi and thans for this very usefull app! It works fine furing an activity showing on the infoscreen of my VivoActive 3. However when i look up the graph and vo2 max table in the connect app aferwards. It does not allways show the table. Also I would love to have it update my profile, but saw in your review replies that that is not possible. I am wondering then what I would need to do to update that field. I have not found a "standard" app that can test Vo2 cycling info..

emerson evangelista
28. Oktober 2017 | Version 1.51

Bom aplicativo, uso no eddge 1000, gostei, vale as 5 estrelas.

10. Oktober 2017 | Version 1.49

hi, since the last update, the vo2 complex doesn't work always remains with the calibration screen and any parameters 0. I tried to remove the application and install again but nothing changes.. so now, I'm using the simple you have any suggestion? edge 1000 with last firmware.

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