Applied Human Anatomy and Biomechanics
Applied Human Anatomy and Biomechanics PEP 300
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This 1 page Class Notes was uploaded by Brooklyn Haag on Friday October 23, 2015. The Class Notes belongs to PEP 300 at University of Idaho taught by Staff in Fall. Since its upload, it has received 38 views. For similar materials see /class/227792/pep-300-university-of-idaho in Physical Education at University of Idaho.
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Date Created: 10/23/15
Rules to Remember 1 Muscles only pull Muscles pull toward their center from all attachments sites Therefore any bone can move reverse action 0 One bone usually more xed by opposing forcestorques 4 Whether a bone moves or not depends on whether the opposing forcestorques are larger than the forcetorque produced by the muscle For lin motion m must be produced by muscle For rotation angular motion to occur at a joint muscle must produce torgue have a moment arm across that joint 7 Muscle must cross the joint 0 7Anterior to joint 7 exion 7Posterior to joint 7 extension 7Medial to joint 7 adduction 7Lateral to joint 7 abduction 7Rotation 9 9939 These are general rules only The real key to knowing whether a muscle will cause a rotation is the location of the line of pull of the muscle and its moment arm relative to the joint axis ML AP SI Shoulder Complex Movements Shoulder Girdle 7Elevation amp depression LFP 7Protraction amp retraction LFP NTP 7Upward amp downward rotation NFP 7Upward amp downward tilt NSF Shoulder glenohumeral 7SP gt exion extension hyperextension 7FP gt abduction adduction 7TP gt medial rotation lateral rotation horizontal adduction horizontal abduction Linear motion of the scapula or humerus relative to each other at this joint can occur in all planes