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How to prevent cadence lock for optical HR

payto360
over 8 years ago
I love my Garmin 235, except for the optical HR.

My HR often locks onto my cadence (at around 180 SPM) and it is very, very annoying. It is essentially the only reason I upgraded from the 620 to have optical HR. It seems to happen most frequently when I start to run downhill after a long uphill climb. I'd say 4 out of 5 runs have a significant spike where it locks onto cadence. Sometimes for over 80% of the run.

Are there any threads on here which have tips in how to stop my watch from locking onto my cadence? I have tried wearing my watch tighter, but it doesn't seem to work.

I don't have hairy arms, which I see has been a problem for some.

I have the 4.10 software.

Here are some examples:

My easy run this morning: https://www.strava.com/activities/511111733
My tempo on Saturday: from 4 to 8km - https://www.strava.com/activities/508616637/overview


Thanks all
  • 0 over 4 years ago
    • MY 735 never had this problem- but the 245 music is terrible. Why i wonder?-Garmin should fix this somehow-it appears to be ubiquitous-We pay lots for these "Heart Rate" monitors!-All subsequent data related to heart beat becomes useless such as VO2max predictors etc-Solution ?Garmin-please!
  • 0 over 1 year ago

    Same thing with my 235. I thought I was in Afib!!!! WTF, Garmin should do a recall and reimburse us or replace the watch with no cadence lock.