HRV methodology change?
closed
Arya B
Hi, I have been using Bevel and Athlytic for a while. I know you use different methodology to calculate sleep HRV but both based on apple watch. For a long time the results correlated, but as of a few days ago they are completely uncorrelated more often than not! Have you changed your methodology for calculating?
On a related note, how can I export HRV values out of the phone so I can do some post-processing on it?
Thanks, Arya Behzad aryabe@gmail.com
Randell
closed
Randell
Hi Arya B, Since you haven't responded, I will be closing this ticket now. If you still have concerns, please comment back and respond to my previous question. Thanks!
Randell
under review
Randell
Hi Arya B, Can you please provide more info regarding this? Are you able to send a screenshot (from the time it correlates and to where it does not) of what you are referring to?
Just to be sure, you are aware that By default, Bevel utilizes RMSSD for calculations. If you've switched to SDNN in the Calculation settings, it should align with what Apple Health displays, as both utilize SDNN calculation.
Can you please confirm what method are you using when calculating HRV?
For exporting data, this is a planned ticket that is already in our Roadmap here: https://feedback.bevel.health/feature-requests/p/export-data