水平面における肩甲上腕リズムについて

DOI 被引用文献6件
  • 田中 直史
    Department of Orthopaedic Surgery, Ohno Memorial Hospital.
  • 矢高 勉
    Department of Orthopaedic Surgery, Ohno Memorial Hospital.
  • 夫 猛
    Department of Orthopaedic Surgery, Ohno Memorial Hospital.
  • 大槻 伸吾
    Department of Physical Education, Osaka Sangyo University.
  • 朴 正秀
    Department of Orthopaedic Surgery, School of Medicine, Osaka City University.
  • 大久保 衛
    Department of Orthopaedic Surgery, School of Medicine, Osaka City University.

書誌事項

タイトル別名
  • Gleno-Humeral Rhythm in the Horizontal Plane
公開日
1994
DOI
  • 10.11296/katakansetsu1977.18.1_48
公開者
Japan Shoulder Society

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説明

The gleno-humeral rhythm in the raising of the arm is well known and very important in clinical practice. Where other movements of the arm are concerned, however, we have been likely to neglect the scapular motion because of the wide range and large freedom of the gleno-humeral motion and the difficulties in dealing with analyzing the scapular motion. Using X-ray computed tomography (CT), we have so far measured the degrees of spinal rotation and scapular inclination to the thorax, and found that the range of spinal rotation is only on average 24 degrees at the level between the sacrum and upper thoracic spines, and that the degree of adduction and abduction is on average 53 degrees. Thus, the importance of scapular motion has been suggested. The present study was performed to confirm the presence of gleno-humeral rhythm on the horizontal plane as well.<br>Method and result<br>Two healthy male subjects were requested to extend and flex their arms at the horizontal level to study the scapular motion associated with such motion of the arm by using the NAC VICON threedimensional computed motion analyzer. The scapular spine was marked with two K-wires inserted under local anesthesia. We found that the scapular as about from 40 to 50 degrees when the arm is moved horizontally from a maximally flexed position to a maximally extended position.<br>Discussion<br>When analyzing the upper extremities in other movements, other than raiing the arm in sports have been studied. In the majority of such studies, however, the scapular and clavicular motions have rarely been taken into account. We confirmed the presence of gleno-humeral rhythm during the horizontal motion of the arm. At present, we are further analyzing scapular and clavicular motion using this VICON computed analyzer in the throwing and various other motions.

収録刊行物

  • Katakansetsu

    Katakansetsu 18 (1), 48-53, 1994

    Japan Shoulder Society

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