# Polarized Training with Stephen Seiler, PhD | EP#177 That Triathlon Show **URL:** \ **Category:** Training\ **Tags:** polarized\ **Created:** [April 15, 2019, 1:50pm UTC](https://www.trainerroad.com/forum/t/polarized-training-with-stephen-seiler-phd-ep-177-that-triathlon-show/14690 "2019-04-15T13:50:14Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![bbarrera](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/bbarrera/32/14734_2.png) [@bbarrera](https://www.trainerroad.com/forum/u/bbarrera)\ **Post date:** [April 15, 2019, 8:08pm UTC](https://www.trainerroad.com/forum/t/polarized-training-with-stephen-seiler-phd-ep-177-that-triathlon-show/14690/7 "2019-04-15T20:08:46Z")
On [Fast Talk episode 54](https://www.trainerroad.com/forumt/polarized-training-discussion-fast-talk-podcast-flo-cycling-podcast/1766/84), Dr Seiler said (loosely transcribed, not direct quotes): - roughly 80% of 60 min for zone 2 bottom / zone 1 top. That gets you in the ballpark, if its too high adjust down. Most of the rides will be 60% or 70% so there is a margin of error. Be conservative and don’t overestimate your ftp. - most people over estimate their ftp - get off your a\*\* and really do a 60 min power test For myself, it is roughly 60-70% ftp (and ~72% of HRmax) and the “talk test” or “first deep breath test” are likely better ways of determining your LT1/VT1 (and then riding under it). --- _[View the full topic](https://www.trainerroad.com/forum/t/polarized-training-with-stephen-seiler-phd-ep-177-that-triathlon-show/14690)._