In a polarized plan, ANY work above Z1 means it wasn’t a Z1 ride. The idea is, for example, to do one REALLY hard ride, and then all the other rides for the week purely in Z1.
In a polarized plan, ANY work above Z1 means it wasn’t a Z1 ride. The idea is, for example, to do one REALLY hard ride, and then all the other rides for the week purely in Z1.