A term I’ve heard tossed around when it comes to pros and experienced riders describing an ability to perform for long periods of time, under high amounts of fatigue and/or multiple days on end. Some people might call this a “long term base” or another name but the idea is the same.
It it isn’t not quite as easily quantified as, for example, FTP [W/Kg] which is already a good gauge of somebody’s fitness. The first step to training something is quantifying it. there are many metrics that try to grasp the essence of deep fitness such as “tired 20” (20min power after 2000kJ of work), TTE (time to exhaustion: continuous time able to spend at FTP), FRC (functional reserve capacity) ect…
The question remains: these metrics become harder to conceptualize as the list goes on, we know they are the result of having desirable traits, so how to train them? Or can they even be trained for specifically? (maybe they are just the results of training and racing at a high level for years?)
Cycling tradition would have you believe that “piles of miles” will make you a “better cyclist”, modern wisdom would conclude that on a “time budget” TrainerRoad has it all figured out.
If you are willing to put in the work, what is the best way to do so to achieve this?