FR 955 Series: Training effect calculation is wrong AFTER 12.23 software (may include 12.27 and 13.15 sw)

Configured correct means individual to the user.

It makes no sense that training effect woild use the same zones for everyone as people have different lactate thresholds, different max heart rate etc..

Take vo2max for example, Garmin nerds to know your pace, running HR and max HR only.

Similar with training effect.

Garmin doesn't care your configured running zones. Some may be even configure it uniquely or wrongly.

Everyone has a different LTHR. This is correct. But LTHR is typically 80-90% of MHR. So MHR data is crucial.

I think I sorted out, after the update they have changed percentages of the zones and we don't see percentages and numbers like 935 and have to calculate it. I have managed do calculate based before the update and need to check in activity. But yesterday I checked with lactate threshold option and everything was ok in TE. So finger crossed with manual entered zones everything to be ok. Don't now why they changed the percentages of Max hr. Don't why when the percentages have been changed why the numbers was as usual and I think this was the missreading. The gc used the new percentages but we see our previous numbers.

This doesn't seem to be limited to the FR series. I have a Fenix 6 Pro and noticed the same thing starting some time this week.

Last week (04/09/22), easy 17km run, average HR 144 (Zone 2.6), max HR 151 (very briefly), training effect 3.7 base. Sounds correct.

Today (11/09/22), very similar run, easy 19km, average HR 143, max HR 157 (briefly, total ~4 mins in zone 3 out of 1:50:xx), training effect 4.2 VO2 Max.

Both runs using firmware 23.00. I am beta-enrolled so last week may have been before the release of 23.00 final, but now my Fenix 6 shows 23.00 without the 'beta' symbol.

And another data point: yesterday, super easy 6km, average HR 141, training effect 2.9 tempo (tempo with effect size < 3 shouldn't even be possible afaik, this is certainly the first time I've seen it).

Checked in Garmin Connect that my HR zones haven't reset (% LT based, LT 169), and I copied my running HR zones to the default activity profile in case it was using those instead.

Read my post just above you. It explains the possible causes of wrong TE.

This has nothing to do with the running zones.

I sorted it out for myself it wasn't correcting the zones the problem but was zones based on max hr. I switched to lactate threshold and everything is back to normal. I hope garmin will resolve the issue soon.

Hi guys, the bug is there, I was thinking I sorted out but it's there...

1. Yes

2. Yes

3. USA

This is getting really annoying. Most of my easy runs are labeled as High Aerobic. One my runs last week was an easy 4 mile run at 8:30 pace and this was labeled as a Tempo run. For reference I am in about 79 minute half marathon shape at the moment.

Yesterday I went on a very easy 3.4 mile recovery run averaging 9:10 pace and this was correctly labeled as low aerobic. However, this run should have been labeled as recovery, not base. 

I have tried setting my heart rate zones based on Max, LTHR, and BPM. There is nothing that works. The load focus is skewed because most of my runs are labeled as high aerobic. We pay a lot of money to have these nice watches and a lot of training stats. If it wasn't for my Strava addiction I would consider just using a Timex instead.

Garmin-Kevin is there an estimate on when this is going to be fixed? 

Thanks!

Some users reported no bug.

Just curious. Is your max HR higher than the 220-age ?

The others seeing bugs with TE can share whether your MHR is higher or lower than 220-age.