On today's EASY run I was going down a slight incline at about and my wrist heart rate reading as c. 180 bpm (normally on this regular run its c. 130-140bpm). I was not out of breath and my heart didn't feel like it was racing - I stopped and checked my pulse manually and it was no-where near 180. A few minutes later these elevated readings dropped back to where they should be. I have has AF in the past (and a successful ablation) so I know exactly what AF feels like - this was not AF.
After synchronising I looked back at the run on my computer.
Throughout my run the graph says that my cadence was between 320 and 330 spm!!! BUT the summary has max run cadence as 175. The export to Strava shows a normal SPM profile - its almost as though the graph in the garmin app has these results doubled!
Could these abnormal readings be down to the v.9.60 software upgrade??