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Did OHR / WHR measurement change in 5.00 SW update?

Stefan
over 4 years ago

Hello,

Did anything change in the way the optical heart rate is measured in the 5.00 update? I see some huge changes in my heart rate that I cannot explain due to weather, fitness, time of day, perceived fatigue, etc.

I do indoor spinning a couple of times a week and for over a year in general my heart rate zones are quite similar after every one hour workout, always at the same time of day, same music, same day:

However exactly after the 5.00 update the measured heart rate and zones changed considerably and has been looking like this for the last 4 workouts:

I have no indication as to why i am suddenly in zone 5 that much, it's jumped from the least used zone to the most used zone for every session since the 5.00 update. Coincidence?

Thanks Stefan

  • 0 over 4 years ago

    I think not! It was the ALIENS! But yes, there was "update" to WHR, which has pretty weird version number, it might be just dropped 2, or it might be something totally new, dunno.

    WHR: 20.04.70 => 0.09.00

    My speculation is that it has just missing 2, and it should be 20.09.00, but dunno. 

    Otherwise, I use WHR only in 24/7, if I do sports I'll use HR strap.

  • 0 over 4 years ago in reply to jmto

    I occasionally use my HRM-TRI when indoor spinning and those sessions would suggest that the old measurements (few minutes in zone 5) are correct and the current reversed statistics are off.

  • 0 over 4 years ago in reply to Stefan

    Did your zones get changed?  Or specifically your cycling zones?

  • 0 over 4 years ago in reply to badbri

    If I look at the two graphs the zones changed by 1 bpm, however it changed in the way that zone 5 now starts one beat higher (155 from 154), that would suggest that I should be even later / less in zone 5 I think.

  • 0 over 4 years ago

    I had the same feeling in my last run after updating my 945 to 5.0(ran with HRM-RUN) my HR suddnely is higher and my HR zones are suddnely different - its like its calculates higher heart rate

  • 0 over 4 years ago

    Hi

    I have also noticed this.

    Get a lot higher OHR reading when running now. The feeling of the body does not match the sudden raise in pulse.

    /Jakob

  • 0 over 4 years ago in reply to Galw

    Well for me it seems WHR specific. Yesterday I used my HRM-TRI again when working out, so with a chest strap and software 5.00 and my zones looked very familiar again: 

    So there definitely seems something off with the WHR apart from the wonky software version number now.

    I'd report this to Garmin support but the last time I tried for another bug, I I just got a standard reply of trying to update my watch to the latest software or reset it and nothing more.

    Stefan

  • 0 over 4 years ago in reply to Stefan

    A graph of your actual HR for each would be more helpful, preferably overlaid with something like Watts or Speed that would hopefully validate the HR from the optical sensor.  Often its fairly easy to look at optical HR data and say... well that doesn't look right in the first mile... or this hill sprint or long downhill it had 'cadence lock' ... or clearly its all a mess with zero correlation of effort vs opticalHR....   

    It should be a pretty smooth graph that rises and falls with your effort or stays pretty steady (or rises slowly) during consistent efforts.  It SHOULDN'T spike up and down nonsensically throughout the ride.  Biking optical HR has often been a problem for me and others (read DC Rainmakers blog/review posts regarding it as well). 

    Could use an Wahoo Fitness App or the Bike to connect to HRM-TRI.... and record that (or in case of bike just to monitor/watchlive).  Also use watch to record the optical (disable HR-TRI on watch).   I used to do similar with my 235 optical at the Gym, i would grab the sensors on the treadmill or elliptical and get a reading... and compare to the watch readings.... was a quick easy cross-check.

  • 0 over 4 years ago in reply to swebolt

    Same here, very high readings today. Not accurate. 

  • 0 over 4 years ago in reply to Ante

    Plus one more. Wrist heart rate is definitely off w the 5.0 firmware. No question. I run with my Apple Watch on the other wrist (more for music purposes) and the discrepancy between the two is huge.