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Core of Body

Core of Body. The body's core muscles are the foundation for all other movement. The muscles of the torso stabilize the spine and provide a solid foundation for movement in the extremities.

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Core of Body

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  1. Core of Body • The body's core muscles are the foundation for all other movement. The muscles of the torso stabilize the spine and provide a solid foundation for movement in the extremities. • These core muscles lie deep within the torso. They generally attach to the spine, pelvis and muscles that support the scapula.

  2. When these muscles contract, we stabilize the spine, pelvis and shoulders and create a solid base of support. We are then able to generate powerful movements of the extremities. • Many people will naturally have an imbalance between the strength of their abdominal muscles and the lower back muscles.

  3. Origin – the muscular attachment on the non-moving bone • Insertion – the muscular attachment on the moving bone • All muscles are controlled by nerves [innervation] • All muscles have a good blood supply

  4. PIRIFORMIS • from Latin piriformis = "pear shaped") • flat muscle, pyramidal in shape, lying almost parallel with the posterior margin of the Gluteus medius • Origin: anterior sacrum • Insertion: superior border of the greater trochanter of femur • Laterally rotates and abducts thigh @ hip jt

  5. Sacrum: pelvic surface. (Attachment for Piriformis identified as red outline at bottom right.)

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