Spinal Biomechanics and Biomechanical Studies of Human Movement and Physical Anthropology

 
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                                                          Biomechanics Human Movement Levers and Leverage
 

 

 

 

 

 

 

 

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Leverage in The Pelvic Tilt Creates an Orthopedic Exercise

The pelvic tilt is not used as an exercise to specifically produce the S-shape posture the same way the sit up and neck exercises are. Leverage is used in the pelvic tilt to produce a strong orthopedically correct lower back. It also helps correct pathologies like bones out of place or bulged discs that can lead to pinched nerves, pain and disability.

 

 

 

 

The pelvic tilt helps make strong, healthy lower backs.

The shear stabilization mechanism, beginning with the sacrum then through the lumbar spine, is provided by the fixed bone facets. The shear force is stabilized when the superior facet of the inferior vertebra makes contact with the inferior facet of the superior vertebra.

A common condition in the lower back is vertebrae out of alignment. When the vertebra moves backwards it takes the disc with it and bulges it into the spinal canal. Shear forces created by the pelvic tilt push all the lower back vertebrae into alignment, which also push the discs back into their proper position.

A common fracture to the lower back, especially in contact sports like football, is the spondylolisthesis.

The solid fulcrum pushes against the facets and spinous processes while the pelvic tilt creates 3rd class shear which pushes the vertebral bodies posterior effectively reducing the fracture.

Nerves exit the spinal column through a hole formed by the vertebral bodies and their facets. When the bones get out of alignment, the hole is made smaller and can interfere with the nerve.

The pelvic tilt puts the vertebrae back into alignment which helps restore the proper size of nerve opening which relieves the pinching of the nerves.

When the bones are out of alignment, the spinal canal (where the spinal cord is), can become smaller. This can be sometimes called stenosis. Putting the bones back into alignment helps put the spinal canal back into place.

We recommend performing the pelvic tilt to keep your lower back healthy and maintain the anatomically correct structure.

 

                                                               Biomechanics Human Movement Levers and Leverage

 

 

Questions? Contact us at: The Spinal Fitness Center 19321 NE 10th Avenue Ridgefield, WA 98642 

Phone: 360.887.8600

E-mail: spinalf@spinalfitness.com

Last Modified : 10/18/04 09:53 PM

Author Info

Copyright 2003

All concepts and diagrams, unless noted otherwise,  of human spinal development in gravitational environment are under copyright registration to John S. Scherger, D.C.. This information may be shared with others for personal use, however no document may be republished in any form or embedded in public databases without the permission of Dr. Scherger.