Originally Posted by
terrymorse
The Garmin 830 head unit (I don't know about the other models) lets you specify heart rate zones based on percentage of LT heart rate.
I find it interesting how my 830 gives suggested recovery times based on effort - presumably heart rate in various zones. I typically cut them short if its totally outrageous, like today’s 56 hours. But I will take a couple of days off none the less since it was a tough day. I have entered HR zones as well.
No longer do I run my HR up to redline - 190 - and find that 180 runs me out of breath quickly enough, so what’s the point of potential scaring?