Hi everyone,
I’m reposting here as I made the mistake of starting a new thread. Thank you @Morten_Horning_Jense for your response! I essentially have the same question (see below for my original post). My understanding is that TID is determined on a session basis … at least that appears to be how many talk about it (e.g. Dylan Johnson) and, if I am understanding correctly, how it is used to define polarized training in the original Seiler & Kjerland paper. “training was organized after a polarized pattern, with most sessions performed clearly below (about 75%) or with substantial periods above (15-20%) the lactate accommodation zone, which is bounded by VT1 and VT2.”
So then my question becomes, how does one use the TIZ calculations to monitor this? Currently, the training models they are tied to seem to assume that TIZ is what determines polarized/pyramidal/threshold, etc. Would it be possible to have a way of earmarking a sessions as Z1/Z2/Z3 focused, and calculating TID based on these designations? A happy medium between these two would be a calculation that weights the duration of the session, such that a 1h Z3 focused sessions counts as half of a 2 h Z1 focused session (in the Seiler 3 zone model).