Most of my runs on my plan have been just above the anticipated tss (which i realize is an estimate). But my last few runs have been a lot higher, at least I think.
I’ve been running towards the top end of the prescribed zones for portions of those runs (most run time being in zone 2), but not every mile/half mile and i really didnt think it would cause the tss to be so much higher.
The last 4 run tss look like this:
64 – 82
109 – 131
75 – 113 (LTHR run)
85 – 104
Should i spend more time at the lower end of the zone(s), especially zone 2?