watch not on right wrote:
I don't think you can look at her heart rate data at all given the fact that her watch was turned around and loose. It had to be totally inaccurate.
If the HR data was wildly inaccurate, she or her crew should have turned the sensor off to conserve battery life. The "131" on her watch at the finish has been guessed to be HR, which matches the Garmin Connect activity. I don't see a point in displaying and viewing bad data.
A common error mode for wrist optical HR sensors is "cadence lock". Her HR stayed well below her cadence throughout both activities, so it seems not to have been a problem.