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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

    Was in contact with the Swedish support and the advised me to do a soft-reset of the watch.

    Have made a single run after the soft-reset and the WHR seems to be more correct now.

    The soft-reset is made by connecting the watch to the charger and then hold down the power button for more then 30 seconds. After that just restart the watch .

    /Jakob

  • 0 over 4 years ago in reply to swebolt

    That actually seems to have worked. Thanks Jakob. 

  • 0 over 4 years ago
    Stefan said:
    Did anything change in the way the optical heart rate is measured in the 5.00 update?

    I hope there were changes as I expect Garmin are continually seeking to improve the WHR and make adjustments as each new version of watch software is released.

  • 0 over 4 years ago in reply to Dr Phil

    Well there is also something like "if it isn't broken, don't fix it".

    Sure I'm glad that there finally is a new software update for the 945 but in this case it seems to have broken more then it fixed or added, especially with the WHR and due to that with the body battery and calories burned in a workout although I have yet to try the mentioned soft reset fix mentioned above.

  • 0 over 4 years ago in reply to Stefan
    Stefan said:
    Well there is also something like "if it isn't broken, don't fix it".

    Try saying that to the vociferous few continually letting us know how bad they think WHR is.

  • 0 over 4 years ago in reply to Stefan
    Stefan said:
    I have yet to try the mentioned soft reset fix mentioned above.

    That reset is part of version update procedure for me :) Without power cable connected, I don't think that matters. 
    There has been in history a lot of problems after software update which that fixes, so proactively doing update, sync, soft-reset is the way I roll.

  • 0 over 4 years ago in reply to jmto

    mmmm well if it is this reset we are talking about: https://www8.garmin.com/manuals/webhelp/forerunner945/EN-US/GUID-FE7137DB-B929-4BD6-B76F-EC5E27AD50B3.html (and 30 seconds with powecable connected is not a different reset alltogether) then I have already done this and it did not make a difference alas. 

  • 0 over 4 years ago in reply to Stefan

    I thought that those are the same... :) Well, try cable + 30s if it's something different and report :D 

  • 0 over 4 years ago in reply to jmto

    I did the 15-second soft-reset (call it what you will...).  Nothing.

    Figured out that my "Single Field" field wasn't showing up, in any of my activity profiles (it was listed, but not working).  

    Uninstall/reinstall of the field, and another 15-second soft-reset, and boom-zip, my 945 is back to "normal", in terms of WHR, or at least close to what it was, prior (the WHR was REALLY low, in-activity, after the update, and before I fixed the Field).

    Anyway, just adding my "fix", to the pile of possibilities.  Sure would be nice if Garmin did something here, at least a comment as to what are "solid things to try"...

  • 0 over 4 years ago

    Well not sure what happened but since the last few workouts, specifically since getting the 6.06 bluetooth / ant update and the following reboot (probably unrelated?), my OHR readings have returned to normal /expected.

    No more 30-40% red zone, also burned calories are way down again from 1000+ to around 800 for a spinning session.