How the HRV Baseline Works

During the first week, the app is establishing your baseline. It will give you an estimate after 2 days. It is looking to see what your average HRV values are as well as how much they fluctuate (standard deviation and coefficient of variation).

After this the app compares each Morning Readiness reading to the established baseline to determine how far out of balance you are as compared to your own individual patterns.

Ideally, you’ll form your baseline during a “normal stress” week. Exercise, work, etc. is fine during your baseline, but you don’t want to establish it during an abnormally stressful or high volume training week if possible. 

The good thing is, the baseline constantly adjusts and updates itself over time, so as your health or fitness levels change, it will learn what your new baseline patterns are. This happens on a rolling 7-10 day basis.

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