So I did Cumberland this Sunday: Log In to TrainerRoad
Watching my heartrate it declines after 30 minutes, I have heard of cardiac drift where the heart rate goes up after 10-20-30 minutes. But not the other way round!
This is 80-85% of FTP and my Heartrate was first 30 minutes: 134/186 (72%) and last 30 minutes minus cooldown 130/186 (69%). I cant understand why my HR is so low with work at such an high percentage of FTP neither.
Ramp test 16. January: Log In to TrainerRoad so my FTP should be correct.
Have anyone heard of this phenomenon before? And where can I read more?