![Declining Vo2 max and strange heart rate while training - vivoactive 3 Series - Health & Wellness - Garmin Forums Declining Vo2 max and strange heart rate while training - vivoactive 3 Series - Health & Wellness - Garmin Forums](https://forums.garmin.com/resized-image/__size/960x720/__key/communityserver-discussions-components-files/6/Screenshot_5F00_20190711_2D00_143826.png)
Declining Vo2 max and strange heart rate while training - vivoactive 3 Series - Health & Wellness - Garmin Forums
![Why does my vivoactive 3 vo2 max keep going down? I am running more then ever. Also my wife, who doesn't work out much, has an excellent vo2 score with her vivoactive Why does my vivoactive 3 vo2 max keep going down? I am running more then ever. Also my wife, who doesn't work out much, has an excellent vo2 score with her vivoactive](https://external-preview.redd.it/Hd-TigpKm36pmZUk6m6eGiiNMbWziBzth3j9TxQz4_Y.jpg?width=640&crop=smart&auto=webp&s=183bed5ccf77b02dc07d7b74a573bc60c2545640)
Why does my vivoactive 3 vo2 max keep going down? I am running more then ever. Also my wife, who doesn't work out much, has an excellent vo2 score with her vivoactive
![Garmin 010-01769-01 Vivoactive 3, GPS Smartwatch with Contactless Payments and Built-In Sports Apps, Black with Silver Hardware Garmin 010-01769-01 Vivoactive 3, GPS Smartwatch with Contactless Payments and Built-In Sports Apps, Black with Silver Hardware](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71ChPUWE4nL.jpg)