I had a chronic come and go back ache, that I now know was my SI being out. And it hurt to sit in a chair (which I do for my job). After months of going to various healthcare professionals, Isvari did some manipulations of my legs and it went away. It came back a bit but as I have continued with her classes I do not have it at all and have no pain anywhere even though still have to sit in front of a computer all day. ~ Judi Knight