Dear Alophysio:
Sorry for not replying sooner, but I had an emergency appendectomy.
I guess the facts will be best put forth when the OGI does the assessment this in Lincoln, Nebraska, USA.
I am a clinician and the research comes out of the past 20 years.
You have done your homework and that is commendable.
My research was triggered by my own problem and those of my patients.
As you no doubt will agree that anatomy is absolute, but physiology has some measure of change.
The lats are obviously larger and more global an impact on the posture, but as for breathing they make a minimal of impact. They can be recruited to aid any lateral muscle that is in distress.
The internal oblique has roles related to abdominal position and tonus. However, it can be overrideen by the nervous system to allow belly breathing. Since breath is crutial to existance, the way the body gets breath may change from ideal to a compromised breathing to obtain it. All of the abdominals can be inhibited to keep this process going.
The role of proprioceptive sense is to keep the body in alignment such that the eyes are in plane with the direction of the feet and the rest of normal posture is maintianed. In this aspect, when there is a groin pull, the adductor longus and/or the pectineus create a distortion to the pelvic bones where the torso would be turned to the direction of the tightened add long or pectineus. The contralateral psoas is recruited to stop the distortion or the eyes would be off postiion to the feet. This requires a bracing of the spine or rotoscoliosis would occur. The QL on the contralateral side to the psoas is engaged and this requires the ipsilateral serratus pos inf ( to the psoas) to complete the bracing of the spine. I hope that this explains why the serr pos inf is a factor which cannot be inhibited to obtain the necessary breath, because position in regqards to proprioceptive sense is involved.
I am not sure of any references to this in any research, but the OGI is finding that their research concurrs with mine.
New ideas are not easy to accept and I do not feel offended by your questioning. In times past some ideas were accepted too quickly. However, do not miss the import of this idea. I am positive that the research person at OGI that I mentioned in PM to you will find this to be true.
The reference to the study is to the one done by Dr. T. F. McElligot. There have been several other studies in the USA and Canada. The results of the various trials were 13 to 24% failure rate for electronic diagnisis equipment. The recommendation was that clinical examination should not be overlooked as lives may have been saved. For the physical therapy enviroment, I find that we need to get the most objective information. Postural is the most objective. However, getting enough information out of postural has been a problem.
I hope that this answers your questions. Sorry is I have missed any.
My best to you,
Neuromuscular ED