VO2 max dropped like a brick
Have been using the applewatch to gauge fitness levels using VO2 max level I have been above average for over a year then two months ago it dropped and again has dropped again this time giving me warnings as it is now low - my overall fitness is higher than it has been and before the warning today I had done a 1 hour spin class and a 5 mile walk so it's not a lack of exercise or pushing my arobic rate. Is it a software glitch again like the ones posted in 2019?