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Lactate Threshold - how to trigger?

I have had my 945 now for about 2 months but my Lactate Threshold measurement is still empty after all this time? Does anyone know how Garmin suggests we trigger it? There isn't anything in the 945 manual that I can find.

Top Replies

BeneGi over 6 years ago +3

Why not just di the test:

Open the run app, press up, select training, scroll down to LT test.
BeneGi over 6 years ago in reply to badbri +1

Using: http://bfy.tw/O8kG will bring up the first result:

Https://m.youtube.com/watch?v=o7AtmqxHvMc

if you just take your watch and try, you can see it. Be brave, use your watch!
badbri over 6 years ago +1

So I've had my 945 now for 3+ months, run all sorts of miles on it, including races and it has never triggered a lactate threshold result, even with that autodetect setting as "on."

So I…

All Replies

0 JohnTheRunner over 6 years ago in reply to badbri

Were you able to run the test? As I’m planning on running the test tomorrow sometime.

0 Brychu over 6 years ago

Hi,

the same for me, I have device since May 2019 and device never detected new LTHR. In the past previous model 935 detected it just after about 3-4 weeks. I do 6 days trainings a week, I did also many races (halfmarathons, 10km nad 5km) in meantime and nothing. I will try to start test directly.

0 Former Member over 6 years ago in reply to Brychu

u need chest HRM, is rquired for estimate lactate treshold, just click training in Run mode scroll down you will find it

0 Brychu over 6 years ago in reply to Former Member

Hi,

of course that I use HRM-RUN all the time, never used OHR during my trainings.

0 Heidstocker over 6 years ago in reply to Brychu

Unfortunately, the same for me. While I got frequently detections with my 630 and 935 (of course I only expect them when wearing my HRM-run), I have never seen it on my 945 (also own it since May).

So I will also give the guided test a try in the next weeks.

0 badbri over 6 years ago in reply to JohnTheRunner

Sorry so late responding, I only just now ran the test early this morning. Here is the step by step for mine:

Warmup then press lap button

4 minutes in Zone 2

4 minutes in Zone 3

4 minutes in Zone 4

3 minutes in Zone 5

at the conclusion of the Zone 5 minutes it displayed my Lactate Threshold HR and Pace.

I did it on an extremely hot/humid morning here in SC so I take some of that with a grain of salt, particularly the Pace number. But it is what it is.

0 Brychu over 6 years ago in reply to badbri

So it means that 945 device detected your LTHR during manual test but didn't detect it automatically during your workouts? Some bug?

0 badbri over 6 years ago in reply to Brychu

It won't detect in regular workouts unless those workouts meet specific criteria.

For me, I do a ton of trail running and only 1 road run a week, if that in many weeks actually. I suspect it HAS to be a road run to trigger and even then you need to run across multiple heart rate zones in order to meet the right criteria.

0 runningfan97 over 6 years ago in reply to badbri

Hmm, I usually don’t do trail runs and did them during vacation and had two times a new LT detected.

0 Brychu over 6 years ago in reply to badbri

Since May 2019 I had a lot of runs across multiple HR Zones and nothing. Normally with the same or similar runs model 935 detected LTHR without any problems.