Massage & Bodywork

NOVEMBER | DECEMBER 2017

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A B M P m e m b e r s e a r n F R E E C E a t w w w. a b m p . c o m / c e b y r e a d i n g M a s s a g e & B o d y w o r k m a g a z i n e 41 FUNCTIONAL ANATOMY education The human body uses various systems to absorb impact and cope with uneven surfaces while maintaining a stable base of support. Anatomical structures in the foot, knee, pelvis, and spine all work in tandem to distribute forces and prevent wear and tear on the body as it interfaces with other objects— such as the ground—during gait. Much like the suspension of a car, an assembly of rigid links and optimally mobile joints function as a kinematic chain to manage forces and movement in, and through, weight-bearing structures. Focusing on the pelvic girdle, parallels can be made between the springs, shock absorbers, and linkages of a car's suspension and the bones, joints, and ligaments functioning as a kinematic chain in this region. The anterior pelvic girdle is formed by the pubic symphysis, a cartilaginous joint uniting where the two pubic rami join at the midline. Posteriorly, the pelvic girdle consists of two large, stable synovial joints where the large right and left ilia join the centrally suspended sacrum. The weight of the torso and upper body descends through the spine, pelvic girdle, and then laterally through the femoral neck on each side, and finally through the lower extremities. Pelvic Girdle Suspension System By Christy Cael The posterior sacroiliac ligaments surround and stabilize the sacrum. They work as part of a large network of thick, strong ligaments located in the pelvic region. Iliolumbar ligament Sacrospinous ligament Iliofemoral ligament The ischiofemoral ligament spirals around the posterior coxal joint and assists the iliofemoral ligament in limiting medial rotation of the hip. The sacrotuberous ligament stabilizes the sacrum inferiorly and provides muscle attachment points on the posterior pelvis. Posterior sacrococcygeal ligaments anchor and stabilize the small, delicate coccyx. Anterior longitudinal ligament The iliolumbar ligament stabilizes the pelvic girdle and its connection to the lumbar spine. The inguinal ligament is the inferior margin of the aponeurosis of the external oblique muscle and superior border of the femoral triangle. Anterior sacroiliac ligament Sacrotuberous ligament Sacrospinous ligament Pubofemoral ligament Obturator membrane Pubic symphysis The iliofemoral ligament helps maintain optimal contact between the femoral head and acetabulum, limiting medial rotation and extension of hip. Anterior sacrococcygeal ligament

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