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Wrong estimates after performance diagnostics

Three weeks ago I went to a performance diagnostic. My zones were determined via spiroergometry. After I entered the new training zones (different from my previous ones) into the 945, I get incorrect race forecasts, the VO2max corrects itself further and further down and the recovery times are enormously long.

Measured anaerobic threshold: 165

Can I somehow reset the classification of the watch or does it just take a while until it adjusts to the real values? Thanks crew

  • Appears you are using HR zones by Lactate threshold, looks like everything is setup properly on that screen.    Should just take a week or two for things to level back out.  Recovery times should be pretty good right from the start as that is based on your zones.  Vo2max will drop or raise 1 to 2 pretty easily in a run, so unless your old HR zones were very different.... should adjust to new vo2max pretty quickly (assuming you are doing some steady high aerobic runs or tempo)

  • The old zones were quite different at least in the lower range. Zone 1 ended at 127 bpm so I did my zone 2 training more around 130-135 bpm instead of over 143bpm.

    I'll wait and see, maybe it will solve the problem. Thank you

  • The performance metrics don't use zones, they use maxHR as the key input.

  • Ok, thats a possible reason why it tells me to stop running for days after a moderate run Sweat smile

  • keep in mind that the recovery time isn't recommended to 'not run', it is time before a significant hard workout or race.

    also with how your zones are setup, with active recovery super easy zone1 going all the way to 81% of your max HR of 178?  You did a max HR test as part of the test or from a good hard all out interval test separately?     Max HR of 108% of LT seems pretty low maybe

  • We did a ramptest on a treadmill. This is the maxHR i had plus 2 beats. Measured VO2max was 57. 

  • Just an idea: if i change my maxHR to something higher, as it is used to calculate the rest, my zones will stay the same but the measurement would match better?

  • Really your recovery times are correct, they are based on your max HR, closer you are to max for certain amount of time gives a recovery time.  that's how it should be.  if you fake it out with a higher max HR... what is the purpose?  To make it show what you want it to? lol  If that is your max... it is your max.  If you think you are tougher then your Garmin... and you don't need recovery, or that you can maintain higher % of max and bounce back...  you're likely wrong. lol  !     Plus its just an estimate.  Also nothing horrible about stacking workouts a bit once in awhile.   

    But if the intent is to track load, vo2max, recovery time, aerobic/anaerobic effect... your max HR should be pretty close to accurate.  Otherwise what is the point of having this 'coach' or third-party input on your watch/garmin.  The point, at least for me, is to have a non-delusional/opinionated/roseylensed view of training ...  a quantitative additional data point on your training status.... not just a 'how you feel' or what you think you should do or goal race is coming... ignoring fatigue/injuries...etc... as OCD runners will do! lol. 

    edit:  by editing max HR it will make your vo2max go up, aerobic/anaerobic training effect lower, training load lower... not only Recovery Time effect

  • Well, all i want is a little more realistic data. I get your point and really know about importsnce of recovery. But also i would love the watch to be a little closer to the measured data. 

    vo2max is far of (i know its just a calculated), race time predictions, too. Just would love to use the 945 as it is supposed to

  • vo2max is far of (i know its just a calculated), race time predictions, too. Just would love to use the 945 as it is supposed to

    Then most likely you have your MaxHR set too high/low for what it actually is.  Have you performed an actual Max HR test?  Or are you using a formula to calculate it?  Formulas are not accurate, a dedicated test is more accurate - but typically painful and not something you want to do often.  Fortunately you don't have to, as MaxHR is not trainable and will only change as it will decline slightly as you get (much) older.