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 Spinal Biomechanics and Biomechanical Studies of Human Movement

 

 Biomechanics Human Movement Levers and Leverage  

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Spinalfitness

Home study continuing education providers in biomechanics of human movement  with emphasis on biomechanical muscular skeletal levers and lever systems physics. Special concern:  Athletic spinal development in children and child safety in youth sports programs.

You will learn how mechanical advantage for both proper and improper posture is poor when working against a posterior force, either bent over or upright You will learn this should be avoided.

 

You will see the poor mechanical advantage of a person working bent over with either proper posture or improper posture with an upper body weight of 100 lbs.

 

Proper posture resisting a posterior force (upper body weight of 100 lbs.)

 

 Improper posture resisting a posterior force (upper body weight of 100 lbs.)

Total force of effort:  1,733 lbs.

Total forces created: 2,330 lbs.

Total number of parts used:  30

 

Total force of effort:  1,756 lbs.

Total forces created: 2,503 lbs.

Total number of parts used:  30

 

You will learn that these values were found by the addition of mechanical advantage mathematically determined by lever system analysis from the T12-L1 joint through L5-Sacrum.

 
  

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

Phone: 360.887.8600         E-mail: spinalf@spinalfitness.com              Author Info Copyright 2003

Last Modified : 09/07/06 04:11 PM 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.

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