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HRV Discussion from GroupMe

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    Coach PatrickCoach Patrick
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    Tony LeddenTony Ledden

    @Coach Patrick : Thank you for posting this -- I missed this in the GroupMe.

    @Sheila Leard@Alicia Chase@Al Truscott@Nam Lam@Zach Bennett@Ralph Moore@Larry Peters -- thank you for your thoughts

    Tracking HRV has been a big deal for me with all the Afib talk going on in the endurance world.

    I've been tracking my HRV and resting heart rate since January using an HR strap and an app called Nature Beat developed by SweetwaterHRV and marketed by Ben Greenfield. I feel the strap gives me a bit more precision than the finger tip measure, but consistency in method and use is probably the key.

    I've been reading lots about HRV and how to use it in training, especially the stuff by Dan Plews, Ph.D.:

    https://www.plewsandprof.com/hrv

    https://scientifictriathlon.com/tts42/

    Basically, I use a spreadsheet where I input my daily HRV and Root Mean Squares of the Successive Differences of the RRs (the rMSSD which have been logarithmically scaled) and take the 7 day moving average. I then compare it to +/- .5 of the standard deviation of the rolling 30 day average of the rMSSD. If the 7 day average of the rMSSD falls within the range, I go harder. If not, I adjust the training plan to go more easy. Also make sure to consider overall TSS, fatigue and how I'm feeling.

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    TriathlonTaren had Plews on a podcast and I pulled a version of the spreadsheet, which was free, from the free resources page of his website, and made a couple of modifications to accommodate the app I was using. Feel free to PM me for my version of the spreadsheet (which would also have my data in it).

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    Tom GlynnTom Glynn

    I got interested in HRV a while back and even bought a very expensive toy to help monitor it (Whoop - https://www.whoop.com/) The device never leaves your wrist and batteries simply snap on and off. It monitors data 24/7. It was a very cool product and they have sold their ideas to a bunch of professional sports teams, the US military, to name but a few of their clients. It seemed like a very cool idea. One of their points was that many people didn't take proper readings and so their HRV data would be inaccurate. So, sitting or standing, just as you wake up or a little later, etc.? A 24/7 monitor eliminates many of these issues.

    I found the data interesting but not predictive. My HRV would be perfectly normal after a long 4-5 bike ride, even days later. TSS and HRV never really matched up and I wasn't going to stop exercising based on data that I didn't trust. Also the strap would move around while swimming and the data always ended up being garbage for the workout with no way to edit the file.

    In the end I sold it a couple months later and didn't miss it.

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