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Training Effect Error from VO2Max Interval Workout?

This has been happening to me for years on Garmin Forerunner watches (just updated to the 255) and finally had enough; I decided to post. I do these crazy VO2 Max workouts with pretty average aerobic TE ratings. I have set my max HR correctly and my zones are setup by %. Is this normal? It was a brutal workout and it only gave me a 3.1 aerobic TE?

0 Arunner1 over 1 year ago

Oh, and I was just using the run/walk timer alert to do my intervals. Was also wearing a chest strap.

0 JRKingOfBeer over 1 year ago in reply to Arunner1

I got some extremely useful tips in the below thread in case you wish to take a look:

https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-255-series/364428/anaerobic-benefit-query

(but yeah, the 0.1 anaerobic benefit looks a bit low)

0 global_local over 1 year ago

Was it on a treadmill? It is not always really precise. I reviewed my last outdoor VO2max run - [email protected]/km - it gave me aerobic TE 3.5. and 2.1 anaerobic TE. But it is OK. So i would say - your result is OK.

0 Arunner1 over 1 year ago in reply to JRKingOfBeer

I was just really focusing on the aerobic TE but now that you mention the anaerobic TE, I strongly agree with you.

For how intense the workout was, both ratings seems really low.

0 Arunner1 over 1 year ago in reply to global_local

It was on a treadmill. For hitting my max HR on the last 2 reps and being in Zone 5 for over 20 min, both ratings seem really low. It was a grueling workout (for me); seems odd.

On my easy runs I'm getting a 3.0 aerobic TE (Zone 3, 1hr).

Very frustrating!

0 4684381 over 1 year ago in reply to Arunner1

Arunner1 said:
On my easy runs I'm getting a 3.0 aerobic TE (Zone 3, 1hr).

« How you configure your personal heart rate zones does not impact advanced performance metrics such as VO2 max, training status, training load, load focus, or aerobic and anaerobic training effect feedback available on compatible Garmin devices. Overestimating or underestimating your maximum heart rate can, however, affect the reliability of these metrics. »

0 Arunner1 over 1 year ago in reply to 4684381

I'm not getting your point. I know my Max HR is accurate.

0 4684381 over 1 year ago in reply to Arunner1

Then everything is in order, I thought that you were in vain paying so much attention to the zones.

0 Arunner1 over 1 year ago in reply to JRKingOfBeer

I'm not sure how this helps me. Are you saying my workouts are not effective and TE's are accurate?

0 4684381 over 1 year ago in reply to Arunner1

Arunner1 said:
Are you saying my workouts are not effective and TE's are accurate?

In no case, the main suggestion was to pay attention to the accuracy of determining Max HR, if everything is fine with it, then I have no other suggestions.