Comparison of supraspinatus cross-sectional areas according to shoulder abduction angles

Wonan Kwon, Hyunjeong Jang, Ilsub Jun

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

[Purpose] The purpose of this study was to determine the changes in the supraspinatus cross-sectional areas according to shoulder abduction angles, using ultrasonography. [Subjects and Methods] The subjects consisted of 40 individuals (20 males and 20 females). The cross-sectional areas of the supraspinatus of all subjects were measured with ultrasonography at abduction angle of 0°, 30°, 60°, 90°, and 120°. We set four abduction angle levels (I, II, III, and IV), 0° to 30°, 30° to 60°, 60° to 90°, and 90° to 120°, respectively, when determining the largest change in cross-sectional area. [Results] The results revealed that cross-sectional areas of the supraspinatus increased at all levels, but the abduction angle level with the largest increase in cross-sectional area of the supraspinatus was Level III. [Conclusion] The above results indicate that performing exercises at an abduction angle between 60° and 90° will be the most effective for supraspinatus strengthening in clinical practice.

Original languageEnglish (US)
Pages (from-to)539-541
Number of pages3
JournalJournal of Physical Therapy Science
Volume27
Issue number2
DOIs
StatePublished - 2015

Keywords

  • Rotator cuff
  • Supraspinatus cross-sectional area
  • Ultrasonography

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation

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