Walking VO2max Issue After Running Activity

I have a Vivoactive 5 watch, and my wife has a Venu 2S. For the past two months, we’ve been walking every day, and each walking activity measured our VO2max. It worked for all walks, even short ones, and even with a low heart rate.

However, after we started our first running activity, the watch stopped measuring VO2max during walks and only measures it during running activities.

My parents experienced exactly the same issue.

Is there any way to restore VO2max measurements during walks? We’re not athletes and don’t run often, but it seems that after one run, Garmin changes something and stops measuring VO2max during walks. I tried resetting the watch to factory settings, but it didn’t help. The only thing that works is creating a new Garmin Connect account—then it starts measuring during walks again, but only until the first run.

Does anyone know if this can be fixed?

  • I believe this is by design - after you do a run, VO2max is only calculated from running activities for the next 30 days (*). This is because the calculation from running is more accurate than the calculation from walking, and the watch prioritises the running data. If you don't record a running activity for 30 days, it will take walking activities into account again. Note that VO2max is calculated from previous activities as well as the activity you just finished.

    (*) it might not be 30 days but it's something in this ballpark.

  • In a few days, it will be 30 days since I last ran. It still doesn't measure for now, but I'm waiting to check if it changes.

  • never ever in my life had I vo2 measured from walks and did quite a bit of walking. but heard that some do het that reading. not convinced though that estimate is going to be worth much as vo2 is metric  related to more demanding activity/sport