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Electromyographic Activity in the Immobilized Shoulder Girdle Musculature During Scapulothoracic Exercises Jay Smith, MD, Diane L. Dahm, MD, Kenton R. Kaufman, PhD, Andrea J. Boon, MD, Edward R. Laskowski, MD, Brian R. Kotajarvi, PT, David J. Jacofsky, MD Archives of Physical Medicine and Rehabilitation Volume 87, Issue 7, Pages (July 2006) DOI: /j.apmr Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig 1 Peak 1-second normalized electromyographic activity from the 11 study muscles (N=5 subjects) during 6 scapulothoracic exercises. NOTE. Values are mean ± standard error of the mean. Abbreviations: AD, anterior deltoid; BB, biceps; IS, infraspinatus; LT, lower trapezius; MD, middle deltoid; MT, middle trapezius; PD, posterior deltoid; SA, serratus anterior; SCCCW, scapular clock counterclockwise; SCCW, scapular clock clockwise; SCD, scapular depression; SCE, scapular elevation; SCP, scapular protraction; SCR, scapular retraction; SS, supraspinatus; UT, upper trapezius. Archives of Physical Medicine and Rehabilitation , DOI: ( /j.apmr ) Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig 2 Side view demonstrating how holding the hand away from the abdomen during the scapulothoracic exercises may reduce the electromyographic activity in the upper subscapularis to safer levels. Archives of Physical Medicine and Rehabilitation , DOI: ( /j.apmr ) Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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