Giunto sacroiliaco (sij)
- to overcome the forces of gravity and shear,« force closure » ideally generates a perpendicular compressional reactionforce to the SIJs
- TRANSVERSUS ABDOMINIS close the pelvis superiorlyand PELVIC FLOOR MUSCLES close the pelvis inferiorly and are involved in forceclosure of the SIJs
- When this mechanism works efficiently in thepelvis, the shear forces between the iliac bones and sacrum are adequatelycontrolled, and loads can be effectively transferred between the trunk, pelvisand legs
Pel J.M. Spoor C. W, Pool-Goudzwaard A. L,. Hoek van Dijke G. A, Snijders C.J.. Biomechanical Analysis of Reducing Sacroiliac Joint Shear Load by Optimization of Pelvic Muscle and Ligament Forces. Ann Biomed Eng. 2008 March; 36(3): 415–424.
- TRANSV ABD AND PELVIC FLOOR EXHIBIT ANTICIPATORYSTABILIZING ABILITY (APAs) WHICH IS A KEY FOR SIJs STABILITY
Richardson CA, Snijders CJ, Hides JA, et al. The relation between the transversus abdominis muscles, sacroiliac joint mechanics, and low back pain. Spine (Phila Pa 1976) 2002;27:399–405.
- TRANSV ABD AND PELVIC FLOOR CONTRACTIONNECESSARILY SUPPOSE AN INCREASE IN IAP
Neumann P1, Gill V. Pelvic floor and abdominal muscle interaction: EMG activity and intra-abdominal pressure. Int Urogynecol J Pelvic Floor Dysfunct. 2002;13(2):125-32.
- TRANSV ABD AND PELVIC FLOOR ARE PART OF THE «RESPIRATORY POSTURAL MUSCULAR SERIE » AND ( due to « in serie »mechanics) « PRESSURE COLUMN » IS THEN ACTIVATED
Finet G, Williame C. Traité d’ostéopathie. 2016. www.publier-un-livre.com