This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Garmin Performance data is bogus at best ... or I don't get it?

I don't know where to put this as I don't know if it's a Fenix or App problem but let me explain what the issue is. 

I am a 41 yo male, 180cm, 88kg. Historically my training always involved short hard efforts (Bouldering, Street Skateboarding, Track sprint cycling, aso) but over the years I switched to more balanced training. Lots of cardio, also running.

Problems are the following:

  • The fitter I get and the more endurance I have and the better I can keep my HR down on harder efforts the lower my VO2max gets according to Garmin. It in the low 38 almost 37 now where I run one long run between 13-21k and 2 other runs between 5-10k where one is an interval run every week. I usually train around 400 minutes per week But I always obey the rest period Garmin proposes. My VO2max started out at 46 when I was barely able to run a 5k without finishing in HR zone 5 where I now run a HalfM in zone 3 with an end sprint if I feel it.
  • ALL, yes ALL of my runs start out with a Perf Cond of -5 and usually progress down to -10. It does not matter at all what kind of run I do or how I feel doing it
    • if I feel like sh•t all run and can barely keep a pace -> -10
    • When I feel great and am better than what I planned for and even do more because I feel so great -> -10
    • When I just feel "normal"-> -10
    • It also does not matter how hard or easy the total effort is or if I vary intensity whatever.
      • Combine any of the above "feelings" with high/mid/low efforts and voila -> -10
    • The highest I have had in the last year was -1 which was today on a 14k run I finished with a 1minute final all out sprint. And hey I feel great after this run. Ok not true there was one +5 run which was barely a run because I didn't even get over a HR of 130 and the watch instantly complained that the effort was too low ... omg
  •  The watch in general tells me totally bogus things:
    • It recommends a hard effort to gain anaerobic "points" and I do so and manage to get a 2.0 rating ... "tooo much buddy"
    • It tells me to rest for 27 hours -> detraining, unproductive, or it even lowers my Optimal range
    • Last week I literally almost died from an extreme Cardio workout I just did way to long and kept way too hard but that was just too much fun and where I couldn't walk for 3 days because my whole body was just one sore mess -> Garmin: "effort too low"

I always wear a strap (HRM Run, H10) and for running even a Stryd pod for maximum accuracy.

What's going on here? Am I really that unfit or is something really off here? I have proof that I am way fitter then I have ever been and Garmin tells me "no you aren't .. it does not matter that your times and possibilities improved by an amount you never deemed possible you are just an unfit bum" with every training. I am currently really pissed off and even somewhat depressed because if I feel good after a training Garmin tells me that it was *** and I should be spent all the way or if I am totally spent it tells me that it wasn't enough.. If I get a new record Garmin acknowledges it but lowers my stats while doing it. The 5k and 10k predictions Garmin shows me are still slower than what I regularly do even though Garmin has multiple efforts where I beat their time easily. 

The only thing here that's accurate for me is calories burned ... well thank you for nothing

  • Just wanted to chime in again to say that the data is still really bogus. Especially since I am at VO2max 36 now yet my long run is a zone 2-3 ~20k-ish run consistently (depending on mood). Performance conditions is still always negative on EVERY run. No matter if I am rested, exhausted, anything in between or if which HR zone I run in for the major amount of my run, if I do intervals, recovery runs, long runs or whatever.  It does not matter what type or HR or power measurement I use. I also do my monthly or by monthly LTR runs. I really wonder if and how I could fix this without loosing all of my data. I wish there would be a feature that lets me set a breakpoint from which on data is calculated. 

  • For VO₂ max - speed seems to be important. Consecutive slow runs make it drop.

    And it goes up fast if you ignore resting time, so better run as you feel instead.

  • I have given up on this metric completely. Seriously there is no deterministic way this is working for me. In recent years I tried basically everything. Including ignoring resting hours. Only doing speed work and the like. I can't see any correlation between speed work vs long runs. Every run is a negative one for me. Be it speed work or a long run or anything in between. My really hard speed sesh last week was a -5 where I felt great and clocked better speeds and times than ever before while my last long run where I felt sluggish, was hungry all the time, was not sure the heat would kill me because I felt a bit nauseous and thought about stopping the workout halfway ... so everything was wrong: lack of nutrients, too much heat, heart pumping and slow pace gave me a +2. 

    I keep doing my regular LTHR-test runs and use that as my main metric.