hi,
I'm 65yo, I use Fenix 6, Edge 530 bike computer, HRM-PRO and an Android phone with Garmin Connect installed. I've always thought that the numbers coming up in activities such as exercise load, aerobic/anaerobic etc were at times inaccurate or misleading. Yesterday after riding for a solid 3 hours at 20KPH average on rail trail, I expected an exercise load of somewhere in the multiple hundreds, yet it was just 47. I realised that my heart rate zones needed tweaking, so I created a spreadsheet and using default values based on a 60 BPM resting heart rate, I came up with values appropriate for someone like myself with bradycardia (very low resting heart rate). For me, zone 1 should start at 59. While that may sound too low, note that I have in the past had rides on my ebike taking it very easy, achieving an average heart rate of 57 over a 10KM round trip. Uphills I achieved my max HR in the low 70s while rolling down hills hitting low 40s. So I attempted to put these corrected HR zone parameters into Garmin Connect app, but it refused to accept. I found that if I raised the zone 1 start up to 60, that it accepted. So, I'm assuming from this that there is some sanity check that assumed that nobody has a zone 1 less than 60. Wrong, please fix. If I were stil in my teens, the correct zone 1 start for me would be 53, as my RHR then was 30. I suggest accepting anything down to 50, or change the data rejection to a warning.
