Max HR value being reset after run

After updating to 9.33, my Max HR has been reset by the watch to 179. This is despite Garmin Connect (web) showing it as 183 average over last 6 months.. I noticed this and manually revised it to 183 (which is what is being reported by connect on the web. Then after completing a run, I get a notification on the watch that my Max H has bee reset to 179 again. What gives?

also, it's calculating my heart rate zones based on %LTHR...not sure if that matters...but my LT has stated constant...

Can anyone advise why this is happening? It's throwing off my training...

thank you in advance.

Top Replies

mcalista over 1 year ago in reply to MajSigmaE +1

In Garmin Connect, you will need to change your zone setting method overall to maxHR or HRR, then set a new maxHR, and sync it to the watch. Then set the zone method back to LTHR and sync again.

LTHR doesn…

All Replies

0 Dr Phil over 2 years ago

Go to Settings, User Profile, Heart Rate & Power Zones, Auto Detection. If Max. Heart Rate is set On, turn it Off to avoid changes being made.

0 MajSigmaE over 1 year ago

I'm having this issue too on my Forerunner 255.

I tried adding a swim specific heart rate and it kept adjusting my overall heart rate to that value. I turned off detection and its fine on my watch, but Garmin Connect is calculating my zones based on a max probably ~180 instead of 196. All this is even though I use LTHR% and not HRR%

0 mcalista over 1 year ago in reply to MajSigmaE

In Garmin Connect, you will need to change your zone setting method overall to maxHR or HRR, then set a new maxHR, and sync it to the watch. Then set the zone method back to LTHR and sync again.

LTHR doesn't have maxHR as an input, so to change maxHR you need to (temporarily) change to a different method.