VO2max levels confusing

pavel.samokha

AFAIK Suunto uses Firstbeat algorithms in S9 for measuring VO2max, here their reference on Fitness levels
https://www.firstbeat.com/en/wellness-services/wellness-professionals/individual-wellbeing/fitness-level/

ChrisA

@BrunoH I think it’s just another „naming“ and you shouldn’t take the naming too seriously… For me it corresponds to my progress in running. I am 50, started running in March with barley completing 3km and now I can run 10km. My vo2max raised from 33 to 38 so it seems a good indicator for ones aerobic fitness…

BrunoH

@pavel-samokha Thanks, that explains a lot. It’s funny they are referring to something completely diifferent in Suunto Ambit3 reference material.

Well, it’s easier to accept the verdict now that I know what it’s based on. At least I know my goals now!

BrunoH

@ChrisA Thanks!!! No, I won’t take the watch’s insult too seriously It’s just easier to set my own goals now that I know how it judges me and how far is the next step.

pavel.samokha

@BrunoH I agree with @ChrisA on that it’s better to use any performance metric as a relative value. And personally I believe such metrics often skewed towards life-time athletes rather than normal people like us. I glad to see more normal people here in the forum, not 100K+ ultra-trail-runners

ChrisA

@pavel-samokha somehow it seems it also depends on the watch brand . At my wife’s Fitbit I get a vo2max of 44 (or „excellent“ ) and I think that’s because it’s aimed to a broader userbase whose main goal is to be more active and not running a marathon. On Polar, Suunto and Garmin my VO2 max is pretty similar in the average or area… (had a polar and my son has some Garmins I could use).

Dimitrios Kanellopoulos

@ChrisA or data. Wrong data will give you a higher vo2max. Eg longer distance / faster pace at segments.

Does fitbit record hrv during the run etc…

Efejota

My case is totally the opposite. 51, not a great athlete, running as much as 10 kms around 5:45 and the VOMax in amazingly high levels. Compared to those in Runalyze for the same run, I think that the ones from S9B are very very optimistic.

Dimitrios Kanellopoulos

@Efejota I run at the same pace and get 51. Looks ok.

Runalazyze is not using the firstbeat method.

Also you wanna make sure you have setup your max hr correct and zones correct.

pavel.samokha

@Dimitrios-Kanellopoulos I think @Efejota meant age 51, not VO2 max = 51

Anyway only lab test using gas analysis system can say how accurate is Firstbeat or any other algorithm

ChrisA

@Dimitrios-Kanellopoulos I am not sure what Fitbit measures but I found it highly overestimating my aerobic fitness and my daily calorie burn. Sometimes it told me I burned 4000 to 4500 calories just by walking with the dog twice on a Saturday… It’s sleep tracking is very good though

zhang965

My vo2max highly depends on gps signal.

Best gps situation -> 64 vo2max
So-so gps I->. 62
Bad ->61

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Dimitrios Kanellopoulos

@zhang965 said in VO2max levels confusing:

My vo2max highly depends on gps signal.

Best gps situation -> 64 vo2max
So-so gps I->. 62
Bad ->61

Beast

zhang965

what I’ve observed.

Normally, my vo2max on S9B is higher than Runalyze,
But since a couple of days, Runalyze is higher than S9B.

Brad_Olwin

@Efejota My S9B provides VO2 max below my lab tests, but virtually all my running is on trails so this is understandable. Your HR settings will affect VO2 max too.

zadow

Well, I guess that we could debate about it till end of the days. Runalyze vs Firstbeat (Suunto) and we’ll never come to any conclusion. RA and FB calculation will never meet, just because both are using different algorithm and none of them is able to handle intervals and trails run in correct way. Not even GAP.
As was mentioned here here already (and many times before) real value can be measured in lab only.
Well, so you can go, let measure your real VO2max value in lab, and the set a correction factor in RA. Of course, do not forget to remove all interval or trail runs from calculation (in RA). Keep calculation for races (single race runs, not multisport races) and steady runs. Then one should be able to keep track on nearly real VO2 max. That is for Runalyze (RA).
For Suunto calculation, it is just not possible (afaik) to exclude specific run from calculation…

Oh yes, and please keep in mind that effective VO2max in RunAnalyze is calculated from VO2max and running efficiency. So, here is another factor in game telling us that you just cannot simply compare values from Runalyze and from Suunto. They are just not the same…

Have a nice day all!

zhang965

@zadow said in VO2max levels confusing:

Well, I guess that we could debate about it till end of the days. Runalyze vs Firstbeat (Suunto) and we’ll never come to any conclusion. RA and FB calculation will never meet, just because both are using different algorithm and none of them is able to handle intervals and trails run in correct way. Not even GAP.
As was mentioned here here already (and many times before) real value can be measured in lab only.
Well, so you can go, let measure your real VO2max value in lab, and the set a correction factor in RA. Of course, do not forget to remove all interval or trail runs from calculation (in RA). Keep calculation for races (single race runs, not multisport races) and steady runs. Then one should be able to keep track on nearly real VO2 max. That is for Runalyze (RA).
For Suunto calculation, it is just not possible (afaik) to exclude specific run from calculation…

Oh yes, and please keep in mind that effective VO2max in RunAnalyze is calculated from VO2max and running efficiency. So, here is another factor in game telling us that you just cannot simply compare values from Runalyze and from Suunto. They are just not the same…

Have a nice day all!

but we are discussing the algorithms right？