Originally Posted by Road Fan

Maybe I'm too ignorant, but I thought all I need to do (and have done a few times) is to decide how much time my indoor pedaling today is going to take, pedal in the lower zone until I've done 40%, do 20% ramping it up into the upper zone (this threshold value is a guesstimate, but I have no problem just doing RPE), then dialing it back at 60% time and finishing the ride at 100%. Pedal at a walking pace for a few minutes more to let my heart rate ramp down to around 80, and done.

And I think I understand that polarization and periodization are not the same thing, and that polarization does not imply periodization. I understand there is a lot of science behind periodization, and I respect that. I found it too much as well several years ago when I tried to take it on.

No?