Dear Bike girl and all:
I do not agree with theSIJ being a big causing factor in the majority. Conditioning of viewpoint has lead to most looking for this in patients.
To use one example, the book Movement, Stability and Low Back Pain has over three pages on SIJ and nothing on the adductors.
In a recent issue of a Helath magazine, it was reported to me that there is new research other than my own that indicates that the adductors may be the larger cause in low back pain than previously considered.
There are numerous factors.
I just gave a presentation on the test that I have been using in assessing the pelvis to a group of physiotherapists in Seattles. Washington, USA, who had Masters and Docturate degrees. The reaction is very positive and they are incorporating the test in their routine.
You might consider having a physio check you for asymmetry of pelvic angles or differring of innominate bone positions as you do hip ABD.
My idea is forget SIJ and look elsewhere. It has been my experience that SIJ problems are the effect and not the cause of the problem.
Best regards,
Neuromuscular.