Effects of Isometric Hip Abduction Contraction in Different Directions on Muscle Thickness and Muscle–tendon Junction Distance of Fibers of the Gluteus Medius Measured by Ultrasonography

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  • MITOMO Sho
    Department of Rehabilitation, Kawakita General Hospital Doctoral Course, Department of Physical Therapy, Graduate School of Human Health Sciences, Tokyo Metropolitan University
  • ICHIKAWA Kazuna
    Doctoral Course, Department of Physical Therapy, Graduate School of Human Health Sciences, Tokyo Metropolitan University Visiting Nurse Station Kitazawa
  • USA Hideyuki
    Division of Physical Therapy, Faculty of Health Sciences, Tokyo Metropolitan University
  • OGAWA Daisuke
    Department of Physical Therapy, Faculty of Health Sciences, Mejiro University
  • FURUYA Hidetaka
    Department of Rehabilitation, Sonoda Third Hospital
  • TAKEI Hitoshi
    Department of Physical Therapy, Graduate School of Human Health Sciences, Tokyo Metropolitan University

Bibliographic Information

Other Title
  • 異なる運動方向への静止性股関節外転収縮が中殿筋前・中・後部線維の筋厚および筋腱移行部距離に及ぼす影響
  • 異なる運動方向への静止性股関節外転収縮が中殿筋前・中・後部線維の筋厚および筋腱移行部距離に及ぼす影響 : 超音波画像診断装置を用いた検討
  • コトナル ウンドウ ホウコウ エ ノ セイシセイ コカンセツ ガイテンシュウシュク ガ チュウデンキン マエ ・ ナカ ・ コウブ センイ ノ キンコウ オヨビ キンケンイコウブ キョリ ニ オヨボス エイキョウ : チョウオンパ ガゾウ シンダン ソウチ オ モチイタ ケントウ
  • —超音波画像診断装置を用いた検討—

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Abstract

[Purpose] To analyze differences in action between fibers of the gluteus medius. [Subjects and Methods] The subjects were healthy males aged 22–34 years. The motor task was 30% maximum voluntary isometric hip abduction contraction in different directions (1, abduction; 2, abduction + flexion; 3, abduction + extension). Muscle thickness and distance of the muscle–tendon junction were measured using ultrasonography, and their rates of change were calculated. [Results] The rate of change in muscle thickness of the anterior and posterior gluteus medius was significantly higher in tasks 2 and 3, respectively. The rate of change in the distance of the muscle–tendon junction was the same as the rate of change in muscle thickness. [Conclusion] Anterior gluteus medius fibers participate in flexion in addition to abduction, and posterior gluteus medius fibers participate in extension in addition to abduction.

Journal

  • Rigakuryoho Kagaku

    Rigakuryoho Kagaku 32 (6), 869-874, 2017

    The Society of Physical Therapy Science

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