This whole post is assuming you have faith in the Coogan metrics and I’m referring to the statement about someone with 8 hours available should train polarised.
From my understanding of what he says, and I’ve listened to pretty much every podcast he’s ever been on, is that the bulk of sessions/training time (80%) need to be done at a very low HR so to achieve this you will inevitably be riding at very low Wattages, at least initially.
Clearly if you have endless time you can achieve reasonable TSS this way but to say that people who have only 8 hours to train ought to train in a polarised way is surely inevitably only going to lead to one thing… getting slower.
Then again CTL etc isn’t the be all and end all of training, so what if your CTL plummets, if you’re rested enough to beast your 4 x 8s at 110% FTP a few times a week then who knows where it will get you.
Bandit said it already, if you want to get fitter, in general, you need to do more volume at lower intensity, people with 8 hours a week clearly don’t have this time available.
I can’t recall him ever saying this ref people with only 8 hours to train by the way, where did this come from?