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Anaerobic training effect broken on 6.00?

Over the past two weeks, I've noticed that despite using my 935 with my Garmin HRM Run (the detachable strap model) and getting all run dynamics, my anaerobic training effect on my workouts is abnormally low, less than 1.0 and often less than 0.5, even when I spend 25-50% or more of the workout in zone 5. I've double-checked my heart rate zones are correct in the watch and Garmin connect and the mobile app and the time in zone recorded does appear to match what I would expect.

The aerobic training effect appears to match what I'd expect based on previous workouts and perceived exertion.

I checked with a friend who has the 935 too and he noted the same, all workouts recently with an abnormally low anaerobic training effect.
  • Former Member
    0 Former Member over 7 years ago
    I'm certainly a new denizen, here, but generally speaking, I've been very pleasantly surprised by the sophistication of some of the conversations.

    That said, if anyone has any ideas how to break this stuff down and package it for easy digestion, send me a message. Seriously. No one would like for this stuff to be simpler than me.


    Please post more Herman, it's much appreciated! And over on the other forums (e.g. 735XT).
  • I think a basic breakdown of what sorts of activities affects the different Firstbeat features and in which ways. Possibly even a sub-forum for the purpose since some features are spread across many of the device lines.

    This is a very good discussion on some of the more advanced features, but things like Vo2max is creeping further down the range and questions crop up in every sub-forum has new users or users moving up in the range ask the same questions. Luckily there are plenty of knowledgeable forum members who peruse many device specific threads so the questions get answered, but having a central place to discuss these things that can be pointed to might be handy to point folks to instead of giving the same responses over and over.
  • Thank you ia_triguy for posting this issue, and HermanB for providing very useful information and links! As others have noted, this is fundamental information about some of the measures provided by the FR935 and other Garmin equipment. I'm afraid that most users aren't aware of all this (including me before I came across this thread). It would be helpful to make sure the info is widely disseminated.
  • I kind of feel any metric, even more basic things pace needs some thought as to how to use it. I mean if you can run 40 mins for 10K then perhaps "clearly" you should always run at or bit under 4:00 min/km to improve. Except of course we don't and should not. How we do learn that? Partly by trial and error, partly by reading what coaches/informed people are suggesting. Of course then nobody will agree on what pace is best for different sessions so there is always an element of self reflection in one's training.

    I find if you put up a FAQ people will still ask after a day or two where is it and want to ask questions on it - as here. I recall Garmin have done quite a few YouTube videos in these training metrics so they are worth an initial look.