Thank you for your continued interest.

I have found that most people with the exlusion of Ola Grimsby and possible Dr. Robert ELlis have difficulty with this concept. I have talked to or had communication with Andry Vleeming & Diane Lee. Both of which had some trouble with the concept. One was very closed to any orthopeadic testing or landmark testing.

I agree that we must be critical and not accept something just because someone sayes it is so.

I did mention a test of the PSIS to sacrum with hip abduction. This shows that the PSIS moves away from the sacrum with hip abduction, but moves with the sacrum with torso flexion and hip flexion. This disproves the first as inaccurate. It was used to disprove other so called Wikipedia reference-linkSIJ tests. The original standing SIJ test and others is an illusion that has caused many to pursue the illusive problematic SIJ.

I agree that the statement of no stuck SIJ does sound close minded, but it was said to get attention and it is said with the evidence in over 1,000 patients. Further, it does not preclude tramatic injury where the joint is crushed or damaged, but does say that there is no such thing as a stuck SIJ in most patients as we commonly hear in books like ORTHHOPEADIC PHYSICAL ASSESSMENT by David Magee U of A to name just one of many. This is more commonly believed that one would like to see.


Motor contrl to me is the signal controlling the muascle as differentiated from the other control factors which affect the signal. For example, we study about muscle spindle, but who has studied the "calibration" of the muscle spindle or golgi tendoon organ. Can these ge recalibrated to a different setting or set point from normal? I have not seen any information or research onthis. Neither has any one that i mentioned this to.

The angles are from the horizontal plane. If you do the test you will note that either the PSIS moves inferior to the ASIS or the ASIS moves inferior to the PSIS. It is obvious. You may measure the angles or the distance that the PSIS or ASIS moves inferior to the other. You will not have to guess as the movement with hip abduction in most is very pronounced as hip abdcuction proceeds. The movement is from the horizontal plane. I used the PSIS as the level of the horizontal plane, but you may choose to do as you see fit.

The test must be full weight bearing as the postural control muscles cause the distortion. Therefore, a floor measure was used. Since I am still familiar with the foot and inches I used the equivalent of 6 inches or 15 cm for the initial test. I now use the one foot increment as I have become familiar with the test and know what I am looking for. Distortion increases most after 75 cm. It does not matter which kinetics you use as the distortion is with distance and the measure is only for a coomon reference.

The problem or dyfunction is evident from the distortion of the innominate bones. Once you use the test you will see the data that has been missed. The anterior pelvic angle on the right is from a contralateral cause. This causes a correction by the proprioceptive sense to keep the eyes in line with the feet and the distortion progresses.

Anatomical neutral as published and as I have seen, is when the ASIS and PSIS are level in the horizontal plane. The PSIS should not be inferior to the ASIS or to the other PSIS. The same is true of the ASIS.

I find that any test of motor ability has a very substantial subjective factor. I use the postural assessment first. It is most objective and provides the most objective data. It is much like the resisted tests of the Muscle Testing manual by Kendall. They are of some use, but there are too many subjective factors - even when an instrument replaces the human factor.

The reason that pelvic angles were not in the eminant work, which was research papers, is that none of the participating papers or the editor considered pelvic angles of any concern. There were extensive research papers on the SIJ but not one o the authors considered the pelvic angles or innominate bone position.

The therapy is direct pressure into the muscle at 90 degrees to the muscle body. the distortion is the indicator of the muscular problem.

Thank you again. Best regards.