title: Functions of the subregions of the supraspinatus muscle.
abstract: The aim of this study was to investigate the functions of the six subregions of the supraspinatus muscle (SSP) determined by Kim et al. in Clin Anat 2007;20:648-655, using real-time tissue elastography (RTE). Twelve young male volunteers participated. The muscular hardness of the SSP was measured at rest and with contraction of the MMT3 in internal, neutral and external rotations. The SSP was functionally divided into five groups on the basis of the RTE results. These functional areas were roughly classified into three property groups: the anterior-superficial, anterior-middle, and anterior-deep subregions, which produce contractile force for abduction; the posterior-deep subregion, which produces contractile force for external rotation; and the posterior-superficial and posterior-middle subregions, which maintain tension. RTE was appropriate for measuring the functions of these muscular subregions. Clin. Anat. 30:347-351, 2017. © 2017 The Authors Clinical Anatomy published by Wiley Periodicals, Inc. on behalf of American Association of Clinical Anatomists.
authors.affiliation: Graduate School of Health Sciences, Yamagata Prefectural University of Health Sciences, 260, Kamiyanagi, Yamagata, 990-2212, Japan.
authors.forename: Takuma
authors.initials: T
authors.lastname: Yuri
authors.affiliation: Graduate School of Health Sciences, Yamagata Prefectural University of Health Sciences, 260, Kamiyanagi, Yamagata, 990-2212, Japan.
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Kuwahara
authors.affiliation: Graduate School of Health Sciences, Yamagata Prefectural University of Health Sciences, 260, Kamiyanagi, Yamagata, 990-2212, Japan.
authors.forename: Hiromi
authors.initials: H
authors.lastname: Fujii
authors.affiliation: Graduate School of Health Sciences, Yamagata Prefectural University of Health Sciences, 260, Kamiyanagi, Yamagata, 990-2212, Japan.
authors.forename: Yoshiro
authors.initials: Y
authors.lastname: Kiyoshige
mesh_terms: D000704:Analysis of Variance; D054459:Elasticity Imaging Techniques / Q000379:methods; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology*; D008297:Male; D016059:Range of Motion, Articular / Q000502:physiology*; D017006:Rotator Cuff / Q000000981:diagnostic imaging / Q000502:physiology*; D012785:Shoulder Joint / Q000033:anatomy & histology*; D055815:Young Adult
keywords: function; real-time tissue elastography; subregion; supraspinatus