Manually changing the VO2 Max estimate

I haven’t been able to prevent the override. I have set my tested VO2 max in user profile but the vo2 screen keeps showing the one it thinks it detects. Very annoying.

Garmin and first beats analytics have been way off for me. Calorimetry during gas measured VO2 on a parvo cart difers by 30%. Garmin is lower. Two different running protocol on the metabolic cart have my VO2 within 1 MET of each other and Garmin connect has it 8 Mets lower. I can't figure out how to get the connect app to accept a user input vo2. Very little trust in the analytics. Sleep data is way off when compared to ekg lab monitored sleep

It's got to be heavily based on some kind of FirstBeat table lookup, especially since I don't have the watch monitoring o2 saturation (for Health Snapshots yes, but not for activities).  Garmin has been telling me a [estimated] number that floats back and forth between 39 and 40 since I got the watch with an actual lab tested value of 35.7.  Just today, another lab test gave me a VO2Max is 43.0.  I guess plus/minus 9 percent is reasonable for an estimate (?).

I've edited my profile with this number despite my better judgement and can hardly wait to see what Garmin metrics on my dashboard now jump to some other bizarre state. [I already have a fitness age lower than Garmin says is possible for me, and my running still sucks.]

On a related note, the same 39 number Garmin has been showing me has very recently been upgraded from 'Good' to 'Excellent' (for my age), and the dashboard display shows the pointer inside the blue which is supposed to indicate a value above 40.  I suspect an estimate of 40 for me is some kind of boundary condition that the algorithms don't believe is possible.  This Garmin stuff is all kinda directionally-correct and emotionally engaging without being particularly accurate.

SpO2 is not really related to VO2max, measuring it won't really help.

You did a lab test that gave you 35.7, and then shortly later another lab test that gave you 43.0? That sounds like one or both of those lab tests were not really accurate. I've heard from other posts that they are usually accurate though, so I'm surprised about this.

Your Garmin estimate (39-40) seems to be right in the middle of that. Given your lab results are all over the place, Garmin's estimate does seem sort of okay-ish?

I'm a bit confused about your post to be honest and not sure what you're trying to say (you seem to be saying Garmin's VO2max is very inaccurate, which it might well be, but your lab tests look very inaccurate too.

35.7 was eleven months of training ago.  43.0 is the current measured max.  Same machine at the same facility did the test.  Garmin has been estimating 39-40 the entire time, overstating it for awhile, now understating it.  Yes, I'm offering objective data for the degree of incorrectness one might see in Garmin's estimated VO2Max, but yes also Garmin's estimate could be called 'ok-ish'.  

I see! That makes much more sense. Wow, congrats on such an improvement within 11 months, that sounds very impressive!

Thank you, this precisely answers the question!

Hi, I can't change the vo2max field. Maybe Garmin doesn't allow it anymore?