To all:
IBP is the acronym for the "innominate bone position" test.
The test maps how nutation or rotation occurs to the innominate bones as hip ABD progresses. It is best used to find out the condition termed APAS or "asymmetric pelvic angle syndrome".
It maps the specific muscular imbalances as this happens. It is dynamic and static in concept.
The test could be liked to several frames of the persons condition that can be mapped as the forces are generated and exert influence on the innominate bones.
Please try the test without bias or prejudice to evaluate yourself.
Best regards,
Neuromucular.