Article on training with RA

Saw on IG that Dr. Baraki had authored an article on training with RA. Can someone point me in the right direction for tracking this down? It’s personally important to my wife. She has RA which first became symptomatic at 13 years old. In addition to the physical limitations (primarily due to limited mobility in several joints), she has a very strong narrative about what she “can’t” do due to RA. I am very interested in any research done in this area.
Thanks in advance for any direction given

It’s in the email newsletter.