Ladies and gentlemen, we have a new acronym for those who spend lots of time training in Z2:
FOC, for “focused endurance training”.
https://pubmed.ncbi.nlm.nih.gov/33344993/
“CONCLUSIONS: Focused Endurance Training obtains similar improvements than Polarized Endurance Training saving 17% of training time in recreational runners.”
So, perhaps Overton is right after all??
Frank Overton and Chad? 
Someone better tell Bernal.
You mean the guy who DNFed the TdF? 
(I actually don’t think that means anything, I just liked the alliteration.)
Hm… so these guys trained about 3-3,5h per week (both before and during)… wild
I’m not an expert but I would be willing to bet that at this “low” volume, any training is good training!
Yeah, they were recreational runners, so more limited in what they could do compared to a recreational cyclist.
Still, lots of other studies out there reporting that polarized isn’t superior after all - what caught my eye about this one was the TLA acronyms PET and especially TOC.
I’ll wait until the ‘Unified Theory of Training’ paper is published before I waste more time reading conflicting (and non-useful) research.
We can now land a rocket on a speeding asteroid so it probably shouldn’t be too long before we discover how the human body works. 