Improved Lactate Threshold Measurement Feature in 21.19

All, 

Thank you very much for the feedback regarding the LTHR change, and I am sorry to read about the accuracy concerns. If you have not already, please read Lactate Threshold from our Running Science page. If you still believe the LTHR measurements are inaccurate, please answer the following. 

1. May we have permission to view your Connect account?
2. May we, if necessary, have permission to reach out via email?

Thank you!

Yes, I have read the Running Science Lactate Threshold page (have read it already before this problem). And I do believe the new LTHR measurements are inaccurate, both compared to my earlier results, how I feel running at that pace/HR, and how it is related to my MaxHR.

You have my permission to access my Connect account, and reach out to me via email (as we've done already in some earlier problems).

I have the same problem on my Forerunner 955. The deteced LTHR and maxHR is unrealisticly high. If you need permission to view my account or reach out to me via E-Mail, you have my permission. Even if I adjust the values manuely in the settings, it is still stored in some hiden place inside the watch. Which makes it impossible to use the DSW HR Targets and impacts the training benefit as well. The detected paces are very optimistic, but at least somewhat usable. I use a HRM Pro Plus.

Before v21.20 the guided LTHR test and the DSW targets were on point.

1. Yes

2. Yes

My Last LTHR was from 02 Dezember 2024. I do a Run every second day, always with extern HR Sensor. My max HR Change Last Run from 183 to 183. So it just stayed thevl Same.

I seem to be the odd one out here as I got an LTHR and Pace update after an easy run a few days ago and it's perfectly in line with my IRL numbers. The LTHR is unchanged from previously at 152 and the pace went "up" from 4:08/km to 4:02.

webvan said:

I seem to be the odd one out here as I got an LTHR and Pace update after an easy run a few days ago and it's perfectly in line with my IRL numbers.

Not really :) I have the same experience. Got a 3 times same results - +/-3 bpm only with OHRS on a base/recovery runs -  but no one measurement with an chest stripe on LTHR or interval runs - this is definitely not OK.

1. Yes

2. Yes

Well I'm stil waiting on a Lactate Threshold update . Today I have done two intervals of 15 min each at threshold level and still no update. This was with a HRM strap. I've also done a variety of other runs with no update since 21 November 24