Apple Watch VO2 Max Inaccuracy
I recently got an alert for low cardio fitness from the Health app. I believe this alert is due to the inaccuracy of the VO2 max calculation from my Apple Watch Series 5. There is no way my cardio fitness is 'very low'. I work out regularly, incorporating HIIT workouts twice per week. My resting heart rate is in the mid to high 50s (I know that's not an altogether gauge of cardio fitness, but it's certainly relevant). I always warm up and cool down with a 20 min walk (each time for a total of 40 mins, with my workout in-between). Usually, I do the walks on a treadmill, but recently I've been doing my cool down walk outside, which is being logged by the Health App for cardio fitness. I believe this is what's throwing off my cardio fitness score because I immediately start my walking cool down right after a very strenuous HIIT routine that lasts any where from 20-25 minutes. So my heart rate is very elevated when I start my walk and gradually comes down.
Is there anyone with knowledge of how the watch calculates VO2 max that can confirm that this workout configuration could lead to an artificially low cardio fitness score??
