On the blog Linda's Yoga Journey, the author discusses some things yoga teachers should keep in mind for their students who are trauma survivors. Here's her introduction:
A “trauma sensitive” yoga class is taught very differently from the yoga class with which we are familiar -- soft music, altars, incense, physical adjustments. A typical yoga class may not be comfortable place for a trauma survivor and in fact may feel very dangerous. Merely saying the word "relax" can be a PTSD trigger if the person was told to relax and then was abused.
For someone who has been abused, a physical assist can be a severe trigger for PTSD. Many teachers say, "but I always ask first." Think about that statement. For someone who has a history of abuse and was not allowed to say no (so has issues with power and control), assists are problematic.
Read more here.