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Pilates Muscles #2
Posterior Ab Wall
Question | Answer |
---|---|
Muscles of the Posterior Abdominal Wall | Psoas Major, Iliacus, Iliopsoas, Quadratus Lumborum |
Psoas Major | Flexion of the lumbar spine. Unilateral contaction bends the truck laterally. |
Iliacus | Assists psoas in flexion of the hip. |
Iliopsoas | Action at the hip joint is flexion and stabilization. |
Quadratus Lumborum | Contraction of the muscle causes side bending of the lumbar spine and rib cage. |
Thorax | Intercostals |
Intercostals | Holds the shape of the rib cage. The muscles are invloved in inspiration and expiration. |