# Question about grey zone versus optimal with training not captured by intervals.icu **URL:** \ **Category:** Training\ **Created:** [20 January 2026 17:44 UTC](https://forum.intervals.icu/t/question-about-grey-zone-versus-optimal-with-training-not-captured-by-intervals-icu/120311 "2026-01-20T17:44:57Z")\ **Posts on this page:** 1\ **Showing post:** 16
**Author:** ![MedTechCD](https://forum.intervals.icu/user_avatar/forum.intervals.icu/medtechcd/32/40383_2.png) [@MedTechCD](https://forum.intervals.icu/u/MedTechCD)\ **Post date:** [24 January 2026 09:29 UTC](https://forum.intervals.icu/t/question-about-grey-zone-versus-optimal-with-training-not-captured-by-intervals-icu/120311/16 "2026-01-24T09:29:11Z")
Smells like ‘Supercompensation’. Here’s an older post regarding that: > [@Polarized Training a la Dylan Johnson](https://forum.intervals.icu/t/polarized-training-a-la-dylan-johnson/50378/6): > > Polarized training principles have been discussed over and over again. Mostly by people who don’t believe in the underlying message that you need to do a lot less intensity and a lot more low intensity volume. All kinds of interpretations were made, one more correct then the other, to the point that Seiler himself apologizes for the fuss that was created. One important thing, in my opinion, is that Seiler‘s work is the result of statistical research on several decades of data from mostly pro-at… --- _[View the full topic](https://forum.intervals.icu/t/question-about-grey-zone-versus-optimal-with-training-not-captured-by-intervals-icu/120311)._