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Vo2 Max no longer being measured

6148517
over 1 year ago

I have been using my epix gen 2 for a few months.

My only sport activities are hiking and skiing. Since I started using it, my vo2 max score has been updating roughly on a daily basis. To be clear, when I say "updating" I don't mean that the score changed (it has been stable at 48 for months) but that the watch indicated on the screen that the score had been taken recently (on that same day or the prior day).

This updating used to occur whether or not I engaged in a hiking (or skiing) activity:  apparently, just casually walking around the city with the watch on was sufficient for the watch to take a new measurement.

Since last June 4 (over a month ago now), the watch has stopped updating the vo2 max score entirely even though I have continued wearing it as before (and went on a few hard hikes as well since). The screen on the watch continues to say "June 4" at the bottom of the vo2max screen since then.

Can anyone help?

  • 0 7 months ago in reply to DennisF
    DennisF said:
    IMO, a Hike does not qualify to produce VO2max because for that Epix needs to calculate your power output

    Garmin's documentation and patent filings state that the (running) VO2 Max calculation uses Max HR, Rest HR, HR/HRV from the activity, pace from the activity, and movement detection (for on/off information). Not power.

    Microsoft Word - VO2_white_paper_Revised_B.doc (firstbeat.com)

    It is possible that Biking VO2 max uses the power curve, but I couldn't confirm that. From experience, the closer the Max HR on the watch is to your actual Max HR, the closer the biking and running VO2 max will be. In my case, they differ by only 1 point.

  • 0 7 months ago

    I can't help anyone but I can confirm mine also has stopped working. Last month the watch dropped my VO2max from 53 to 49. No explanation. Since then, it hasn't budged. Today, on completing a fairly intense ('Potential' dropped from100 to 33) one-hour cycle (with power meter), it told me to 'update' my VO2max by doing high-intensity 20-minute workouts. That's about all I do. But oddly, Runalyze, which pulls its data from the watch and is always in sync with it, shows my VO2 max back up to 53, after today's bike ride.

  • 0 7 months ago in reply to 7017726

    I can't help anyone but I can confirm mine also has stopped working. Last month the watch dropped my VO2max from 53 to 49. No explanation. Since then, it hasn't budged. Today, on completing a fairly intense ('Potential' dropped from100 to 33) one-hour cycle (with power meter), it told me to 'update' my VO2max by doing high-intensity 20-minute workouts. That's about all I do. But oddly, Runalyze, which pulls its data from the watch and is always in sync with it, shows my VO2 max back up to 53, after today's bike ride.

  • 0 7 months ago in reply to 7017726

    Looks like I'm going to have to eat my words on this one. After a one-hour ride today, the watch update the VO2max to 54.