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   Biomechanics:   Spinal Biomechanical Studies of Human Movement
   Study of; muscle, bone, joint, lever system producing movement by leverage
  Biomechanics:  Human Movement Levers and Leverage with emphasis on spinal biomechanics & posture           

In this section you will have the opportunity to test yourself on the course material you have studied,
or move to the next step and take the Final.

* To receive course credit a passing grade of 70% is required.

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3) Click HERE to take the Final
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Below is a trial test, which you may take for practice only.

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True | False
1. The properly adapted upright S-shaped provides two special leverage abilities that are cornerstone of superior athlete.
2.
We term the S-shaped spine’s special leverage ability to stand upright as minimum energy. We term its special leverage ability to produce power against a resistance force from the anterior:
A. Effective Force
B. Effective Power
C. Effective Momentum
D. Effective Strength
3.
There is a cost to the human body to provide the leverage to stand upright. To stand upright against gravity your muscles produce.
A. Resistance
B. Activation
 C. Force
D. None of the above
4.
Since standing upright costs you energy it is best to have that posture that requires the:
A. Strongest Muscles
B. Large Muscles Force
C. Smallest Muscle Force
D. None of the above
5.
It takes muscle effort to hold the head up. Which of the following is not true of proper posture?
A. Proper posture requires less muscle effort then poor postures
B. Comparing how much muscle effort is required between good and poor posture is leverage study of mechanical advantage
 C. It will require more strength to hold up head with poor posture then proper posture.
 D. People with poor posture need stronger muscles to lift up their heads in gravity so they will be less tired doing this then person with good posture
6.
When holding the head upright in gravity the joint tissue is under strain of holding up the combine force of the weight of the head and muscle force. A person with poor posture as compared to person with good posture will not experience one of the following:
A. More joint strain
B. More joint injury
C. More joint degeneration
D. More joint strength
7.
When looking at their neck posture from a side view, people should want the following:
A. Military neck, it appears to be straight up and down
B. Lordotic neck, it has curve to it
C. Neck posture does not effect fitness and health
 D. None of the above
8.
When analyzing the human body to produce effective momentum we look at typically 3 accumulative forces, which of the following is not one of the forces.
A. Body weight causing a vertical force
B. Force of resistance anterior to the body
 C. Abdominal muscle force on anterior side of trunk
 D. Back extensor muscles on posterior side of trunk
9.
When evaluating the upright spine for shear forces at the vertebral joint created during effective momentum, which of the following is a direction the shear forces will take
A. Anterior
B. Superior
 C. Rotational
 D. None of the above
10.
Which of the following best describes how shear forces are effectively stabilized in good spinal posture during effective momentum.
A. Strong muscles
B. Ligaments
 C. Fixed bone
D. Effective muscle co-contraction
11.
Which of the following best describes how shear forces are effectively stabilized in poor posture during effective momentum leverage study.
A. Active muscle co-contraction
B. Bone to Bone contact
C. Passive ligament
D. None of above
12.
When examining the leverage taking place in the human spine during effective momentum which of the following does not typically describe compressive forces created at the disc joint space.
A. Stability
B. Simple lever system
C. Strength
D. Use of Facets
13.
When examining the leverage taking place during lower back effective momentum which of the following does not typically describe the effect of a muscle co-contraction.
A. Necessary to stabilize shear forces
B. Create ultimately less compression forces at disc space
 C. Stop posterior movement of vertebra
 D. Neutralize the shear force created
14.
When examining the leverage taking place during lower back effective momentum which of the following does not typically describe a necessary muscle co-contraction.
A. Increases the overall muscle force required
B. Increases the overall force at the joint
C. Produces strong effective momentum
D. Part of a complex shear stabilization mechanism
15.
When going head to head, trying to push the other player backwards, the player with the best effective momentum will win because:
A. They have the strongest muscles
B. Their strong muscles take the stress of their joints
C. To do same job as opponent their posture requires less muscle and produces less force into joints
 D. They have developed the strongest back (posterior) muscles
16.
When evaluating of the musculo-skeletal lever system for mechanical advantage which of the following is not true?
 A. How the strong muscles take the force off the joint
B. Amount muscle force required for movement
C. Amount of forces created into joints during movement
 D. How muscles create force into joint



 

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

Last Modified : 02/02/08 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.