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The maximum heart rate increases spontaneously to 199

8867000
over 1 year ago

FR 955 Software: 17.24 + HRM-Pro Plus Software: 8.9
The maximum heart rate, even when manually set to 175b/m, returns to 199b/m after a run and I never exceed 171b/m during a run. This seems like a bug to me, I experienced this after updating to 17.24, but I also bought and started using HRM-Pro.. at that time. It's rlly frustrating, because my heart rate zones are constantly changing by +- 15 beats per minute... Is there any help?

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  • 0 over 1 year ago

    https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-955-series/350636/high-heart-rate this is the POST....

    The FRUSTRATION is for everyone of us. We lost the hope for solving this problem.. 600$ for continuous update and send to GARMIN report etc etc etc ... .NEXT watch is a POLAR!!

  • 0 over 1 year ago

    If your run didn't actually record 199 bpm on the HR graph (and the max value in your activity stats is lower than 199), this may not be a bug. I've seen something similar - my max HR during a run is X, but my max HR changed to Y, where Y is higher than X.

    Apparently Garmin has some new proprietary algorithm which estimates your max HR from a submaximal effort. If you don't like it, you should be able to turn off auto-detection.

    https://www.reddit.com/r/Garmin/comments/17r10ga/max_heart_rate_autodetect/?rdt=43495

    https://support.garmin.com/en-US/?faq=FMKY5NYJJ71DbuPmFP4O7A

    The documentation specifically addresses your question.

    Auto Detection can calculate your maximum heart rate value using performance data recorded by the watch during an activity. This value may differ from an observed lower value recorded by your watch as the feature can determine a different value based on a proprietary algorithm.

    So it is Garmin's "proprietary algorithm" working exactly the way the documentation says it is supposed to work.

    There is also a thread about a known bug where your watch will set a lower max than the existing max value. But Garmin's support people posted in that thread and emphasized it's only a bug when your max HR goes down. I'm pretty sure that's the bug I saw. (My max was manually set to 197, but my watch changed it to 192, after a run where I was nowhere near 192.)

  • 0 over 1 year ago

    I think you need to get an ECG mate! Rofl

  • 0 over 1 year ago in reply to FlowState

    Thank you for the reply, but still If the "algorithm" shows HR 199 when during the last year my HR was not higher than 178bpm(during various activities) it is for me a bug.. 
    Anyway I turn off auto-detection, which I found just yestrday Slight smile

  • 0 over 1 year ago in reply to 8867000
    8867000 said:
    Thank you for the reply, but still If the "algorithm" shows HR 199 when during the last year my HR was not higher than 178bpm(during various activities) it is for me a bug.. 

    Yeah that's fair. I should say it's intended to be a feature, as counter-intuitive as it is.

    For me, the "new" max HR that was detected was both:

    - lower than my current manually set max, which Garmin has classified as a bug. Note that the Garmin employee who posted in the relevant thread explicitly said its only a bug if the new HR is lower than your current max (with no regard to the observed activity max)

    - lower than what I've observed fairly recently

    I turned off auto-detection too haha.

  • 0 over 1 year ago in reply to FlowState

    I wish Garmin would stick with good old 'your max recorded HR is you max HR', maybe lowering it each 6 months by 1 bpm if the max HR was never met to account for aging.

    Today I did intervals with the highest HR beeing 163 bpm, and based on that my max HR was calculated to be 199. Way off. My max HR is around 185 bpm.