Flexion	Arm moves upward and in front
Extension	Arm moves downward and backward
Hyperextension	Arm moves pass the plane of the body and continues to move backward and upward
Abduction	Movement of the arm sideways and upward
Adduction	Movement of the arm toward the body and downward
Horizontal Flexion	Movement of the arm as as it moves horizontally toward the front of the body
Horizontal Extension	Movement of the arm horizontally as the body moves away from the body

Eleven major muscles control movements of the shoulder.

 

 

Should you have any further questions regarding this article, please direct your questions or comments to "Ask the Doctor" section.

 

 

Copyright © 2004 - 2008 Taras V. Kochno, M.D.  All Rights Reserved
Board Certified in Physical Medicine and Rehabilitation

 

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