Athletes can enable our Experimental Polarized Training Plans from the TrainerRoad website.
Access the Account section, and select Early Access section of the account page. Select Enabled under Polarized Plans to start testing the new plans. Once you've enabled early access, you can add these plans to your calendar from the Training Plans section of the site.
Note: Experimental Polarized Plans can only be added from the website currently. You can't add them from the apps.