The contribution of the biceps brachii on glenohumeral muscle activation

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  • March 21, 2019
Creator
  • Lisowski, James Karol
    • Affiliation: College of Arts and Sciences, Department of Exercise and Sport Science
Abstract
  • The long head of the biceps brachii tendon is subject to extreme amounts of compressive and tensile forces during overhead activities. As a result of these forces, a variety of pathological conditions can occur. It is unclear whether these conditions are a result of the biceps serving an active or passive role at the glenohumeral joint. Though previous research has attempted to determine the role of the biceps, disparities exist in the findings. The active contribution of the biceps can be determined by comparing shoulder muscle activation at varying elevation arcs pre and post biceps fatigue. These results can aid in the discussion about the appropriateness of common surgical techniques performed. A mixed model ANOVA was run to compare the muscle activities during the various humeral elevation arcs pre and post biceps fatigue protocol. The study found no significant changes in EMG activity between pre and post fatigue muscle activation.
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  • In Copyright
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  • "... in partial fulfillment of the requirements for the degree of Master of Arts in the Department of Exercise & Sport Science in the College of Arts & Sciences."
Advisor
  • Myers, Joseph B.
Degree granting institution
  • University of North Carolina at Chapel Hill
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Place of publication
  • Chapel Hill, NC
Access right
  • Open access
Date uploaded
  • March 18, 2013

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