Garmin Fenix 3 HR - Lactate Threshold

A brief discussion of lactate threshold and a demonstration of the lactate threshold test on the Garmin Fenix 3 HR

[ascites]

Helpful videos..now 2020, I'm using Hrm-run 4th generation + garmin fenix 6x pro sapphire. Thanks

[tarynmarie]

This was a VERY helpful video. Thanks for this!

[maazars]

Great job Doug, thanks for taking the time very helpful

[VFella]

Thanks for posting mate.
I do know what LT is but I want to see how it works with the Fenix 3

I use to do a few of 30 minutes assesment trainings at specific points of my training season to check my fitness level and set up or change my training plans.
If the Fenix 3 can do that for me or at least in an easier way it would be awesome

Thus, thanks for the instructional !

[StevenKW]

What watch face is that? I like the chart at the bottom.

[beingkoi]

I think there is something wrong with it then I have had the my heart rate in the red many times from 5k to half marathon. Looks like I will need to call Garmin. Thanks for the help.

[petslikepets]

Hey Doug thanks for posting this. Was the HR data coming from the optical sensors on the Fenix 3 itself or from a chest strap? I'm thinking about waiting for the 5 to come out in March, however I'd consider buying a non-HR 3 now and save half the cost of a new watch if the built in optical HR sensor on the watch is more of a gimmick and I'll need to wear a chest strap anyway. Thoughts or recommendations? Thanks again.

[jojojaykay]

FWIW to those of you that are really into physiological measurements, I heavily doubt Garmin's lactic acid threshold measurements are that accurate. Clinically and in exercise labs, the test is usually done as a blood test and there's just no way an algorithm can come close to a lactic acid test in terms of accuracy. It would be interesting to see if Garmin ever publishes a standard estimated error for things like this and VO2 max.

That being said, for the recreationalist, it's not that big of a deal and it's certainly better than NOT having an estimate. But if you really wanted SOLID data, the best thing to do is to go to a lab to have the test done.

(Dr. Kravitz is the shit btw, great source.)

[JRJR]

You said your 5k race pace was around 8:30 minute miles. What did it estimate your 5k at after the test?

[Psysso]

Can this test be done with the 3 hr wrist HR monitor or is it chest strap only??

[toneloc]

Good video and explanation...thnx. What watch face is that, I like it.

[xelionizer]

I'm sorry to be the one to tell you this; but you did not put enough effort into this test! If you are able to talk to the camera during a lactate threshold test, the test result is void. Repeat without the camera💫 Thanks anyway, for trying to show how the watch guides you through the test👍 Cheers

[patrickbateman]

Can I run the lactate threshold test on a treadmill with my chest strap and footpod or does it require you to run it outdoors? I've never used my fenix3 for an outdoor run in the 8 months I've had it, only indoors.