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Related Experiment Videos

Scapular position and orientation in throwing athletes.

Joseph B Myers1, Kevin G Laudner, Maria R Pasquale

  • 1Neuromuscular Research Laboratory, Sports Medicine and Nutrition, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA. myersjb@msx.upmc.edu

The American Journal of Sports Medicine
|February 11, 2005
PubMed
Summary

Throwing athletes show distinct scapular (shoulder blade) position and movement patterns compared to non-athletes. These adaptations likely enhance throwing performance and may be important for understanding shoulder injuries.

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Area of Science:

  • Biomechanics of throwing athletes
  • Scapular kinematics and kinetics
  • Upper extremity sports medicine

Background:

  • The scapula's 3D motion is crucial for throwing athletes.
  • Limited research quantifies scapular position and orientation in this population.

Purpose of the Study:

  • To compare scapular position and orientation between throwing athletes and non-throwing controls.
  • To identify specific differences in scapular movement during arm elevation.

Main Methods:

  • Descriptive laboratory study design.
  • Electromagnetic tracking used to assess scapular position and orientation.
  • 21 throwing athletes and 21 control subjects participated.

Main Results:

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  • Throwing athletes exhibited significantly greater scapular upward rotation, internal rotation, and retraction.
  • No significant differences were found in anterior/posterior tipping or elevation/depression.

Conclusions:

  • Throwing athletes display unique scapular adaptations compared to non-throwers.
  • These chronic adaptations may optimize throwing motion efficiency.
  • Clinicians should consider these adaptations when evaluating throwing athletes' shoulder injuries.