Sunday, September 09, 2012

Sciatica and it's ergonomic and biomechanical roots

Sciatica has a very important ergonomic components which are usually missed.  
  • The nerve is affected by all three body planes.  
  • One of the major biomechanical body planes that leads to the development of sciatica is excessive internal limb rotation created by foot pronation (transverse plane). 
  • Another body plane is the lateral plane. When there are tight hamstrings and the posterior Fiock compartment this leads to additional pressure on the sciatic nerve.

Sciatica refers to pain, weakness, numbness, or tingling in the leg. It is caused by injury to or pressure on the sciatic nerve. Sciatica is a symptom of another medical problem, not a medical condition on its own.

Sciatica occurs when there is pressure or damage to the sciatic nerve. This nerve starts in the lower spine and runs down the back of each leg. This nerve controls the muscles of the back of the knee and lower leg and provides sensation to the back of the thigh, part of the lower leg, and the sole of the foot.

Biomechanical and ergonomic conditions can now be analyized using 3-D weight-bearing kinematic imaging, (3DO - Three Dimensional Orthodynamics). Through this static and dynamic 3-D analysis, we can evaluate the forces, and motion including mass displacement affecting limb rotation. After analysis is performed, Custom Bio-Engineered Devices are made to control precisely the excessive limb rotation that is affecting the sciatic nerve.

To learn more about 3-D weight-bearing kinematic imaging and bioengineer devices go to the following websites;

 
 
 
3DO Imaging Workstation
 
 
 
 
Pelvic Imaging

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