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FR945 doesn't update the Vo2Max anymore?

The Vo2Max on my device has been acting up strange in the recent months, but since March 18th it hasn't updated not even once, despite the fact that I had about 12-15 workouts since then. 

Any idea why it's not updating? 

  • For me it's March 21st.

    Have you done significant activity since then?

  • Same for me. it stay on same value for weeks now while my training intensety is more or less same as other periods when vo2 increases. for me since 8-3 when it was 1 point higher.

  • Yes, I have more than 10 workouts since then. They are less intensive in comparison to the ones in the gym, but still 35-40 mins per workout with a high pace.

  • Are you talking running or cycling? Have you met all the requirements for VO2max calculation for the activity in question?

  • Yes i am talking about running. did not know it could calculate for cycling as well.  Since i am using the forerunner 920XT and now the 945 the requirements met all. And the vo max was climbing since my training intensity started in december last jear but stopped climbing biginning march while my training intensity and speed grows.

  • Anyone heart something about this issue in the mean time ? stil same value with me after several trainings. while other athletes training with me have higher VO2 max values instead on other wathces like 230 and Vivoactive3

  • don't worry - eventually it will increase or decrease; the algorithm is different compared to the one in 920 / 935 / 230 etc - those watches have been over-reported with at least 3-4 points. plus - don't expect to have a change - even if you have several runs in between - what will definitely change is the performance condition, but not the vo2. just to give you an ideea - i had in march 2 sessions within 7 days with 5*1200 at 3:30min/km and 15*400 at 3:20min/km - nothing changed - although i expected at least a jump from 61 to 62.

  • ok clear. I see improvement on my Lactate and that is more inportant for me but i just thought why is my VO2 nog climbing anymore. My training status is climbing the last months from 357 to 1.248 optimal at this moment. i wil wacht it at that way now. txs. have fun in thaining !