# FTP changes and Adaptive Training levels **URL:** \ **Category:** Training\ **Created:** [September 2, 2021, 7:47pm UTC](https://www.trainerroad.com/forum/t/ftp-changes-and-adaptive-training-levels/62685 "2021-09-02T19:47:39Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![Janhein](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/janhein/32/7721_2.png) [@Janhein](https://www.trainerroad.com/forum/u/Janhein)\ **Post date:** [September 3, 2021, 2:48pm UTC](https://www.trainerroad.com/forum/t/ftp-changes-and-adaptive-training-levels/62685/5 "2021-09-03T14:48:04Z")
Have tested what happens to PLs when FTP is changed. Believe there is a known SW bug that sometimes resets the PLs to 1, but that is not the intended behavior. In my experience increasing FTP typically works, decreasing it can lead to a reset. If you would increase FTP from 194 to 211W my estimate is that your sweet spot PL will go down about 3.5 points, copied the link with the analysis in below. Would love to hear your feedback though if you would decide to make the change. In your case - with a sweet spot PL around 5.6 - I would not change FTP yet though. For the next workout select a ‘breakout’ level (7-8) PL and see if you can finish it. AT will propose adaptations accordingly afterwards. > [@Under the hood of Adaptive Training: Analysis in four graphs](https://www.trainerroad.com/forum/t/under-the-hood-of-adaptive-training-analysis-in-four-graphs/62588): > > With the introduction of the Adaptive Training (AT) beta questions have been raised about the underlying algorithms. One recurring response has been to assume AT is a black-box controlled by artificial intelligence: It must be nice to be an AI and not have to explain yourself. Just spit out a result and produce a “new baseline. Trust it. Bleep!” But nobody does, yet. It’s going to take TR a long time to wean us off the explanations everybody is asking for. It feels counter-intuitive though t… --- _[View the full topic](https://www.trainerroad.com/forum/t/ftp-changes-and-adaptive-training-levels/62685)._