Good points are made in A Strategy for Older People for Thru-Hiking about avoiding overtraining and injury. (Thank you Tom K.)
Way back when I was cycling and had a coach I filled out a log each day to assess progress and problems. The only two points I remember are 1) waking prone heart rate, and 2) fatigue.
If my waking prone heart rate was more than 10 beats above “typical” it was a flag of overtraining. (Now, a few decades later, it’s more like 5 to 7 beats.)
If my fatigue (1-low, 5-high) was 3 or more it was a flag.
I can’t remember any of the others. (There were about 6.)
What day-to-day “indicators” do you use to assess your training status to avoid over-training and/or injury?

