Tired during building mileage for the marathon
Hi there,
I have been building mileage, mostly by increasing easy km's of running.
I do 3 times a week SubT (30 min of work). Which I have been doing fine since jan this year.
But recently, I started doing more longruns at 60% of maxHR, so super easy. But then I noticed I couldn't get my HR up in the SubT sessions anymore and lost the pop. Coincidentally, I increased my mileage from 60km and peaked at 80km over the course of 6 weeks with additional easy running (60% maxHR).
What could be the culprit? The longrun being too much, I now dropped 1 SubT last week, but I still felt sluggish yesterday. Also the weather has dropped recently from 20 degrees to 10 suddenly, so maybe I am just underdressed. Hope someone can give me some pointers!
Cheers, love the community