Was doing pretty good there a couple months ago. Completed SSB1 and SSB2 Low Volume. Completed my first two centuries. Was getting to the point where I could keep a 17/18mph average on solo 35-50 rides without killing myself.
The past few weeks though my heart rate has jumped up considerably for the same efforts. Every time I look down at my HR these days I’m seeing it way way off. Lack of sleep has been an issue of late as well. I’m wondering if I need a big break. Also wondering if it’s just getting hotter out.
Take these two rides - about a month apart - at relatively the same temps based of max HR of 177:
Ride 1: 50mi - 2200ft - 18.6mph avg: z4 Threshold 155-172 was 7% (75F/30 humidity)
Ride 2: 36mi - 1400ft - 17.7mph avg: z4 Threshold was 40% and z5 2.5% (80F/60 humidity)