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Biomechanical study of the shoulder complex

Research Project

Project/Area Number 02650174
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 機械力学・制御工学
Research InstitutionInstitute for Medical & Dental Engineering, Tokyo Medical & Dental Univ.

Principal Investigator

ISHIDA Akimasa  Institute for Med. & Dent. Engng., Tokyo Med. & Dent. Univ. Prof., 医用器材研究所, 教授 (60016540)

Co-Investigator(Kenkyū-buntansha) NAKAGAWA Teruhiko  Faculty of Medicine Tokyo Med. & Dent. Univ. Associate, 医学部, 助手 (60207735)
ISHIZUKI Masafumi  Faculty of Medicine Tokyo Med. & Dent. Univ. Lecturer Research, 医学部, 講師 (60114732)
MIYAZAKI Shinji  Institute for Med. & Dent. Engng., Tokyo Med. & Dent. Univ. Research Associate, 医用器材研究所, 助手 (10014284)
NOSHIRO Makoto  Institute for Med. & Dent. Engng., Tokyo Med. & Dent. Univ. Ass. Prof. Research, 医用器材研究所, 助教授 (80014231)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥1,000,000 (Direct Cost: ¥1,000,000)
Keywordsshoulder complex / 3-D measurement of motion / electromyography
Research Abstract

The shoulder complex is composed of the scapula, clavicle and humerus. shoulder motion is attained by cooperation of these elements. In order to analyse the shoulder complex mechanism, we carried out following experiments.
1)Measurement of motion of the scapula and humerus and EMG
Using a magnetic sensor system(3 SPACE). we measured three dimensional motion of the scapula and humerus in elevation in the sagittal, scapular and frontal plane.
We measured Euler angles of the scapula(scapulothoracic angle)and humerus and excursion of the scapula with respect to the reference coordinte attached to the trunk. And we calculated relative Euler angles between the scapula and humerus(gleno humeral angle).
The ratio of glenohumeral to scapulothoracic angle during elevation was not constant as reported so far. Instead this ratio varied considerably. Motion pattern of abduction was different from that of other elevation. The abduction proved to be difficult motion from a viewpoint of biomechanics. In accordance with this, ranges of abduction of abnormal shoulders were considerably small.
2)Experiment of pitching
Using 3-D angles of the humerus with respect to the trunk, it was possible to discriminate four phases of pitching. Motion pattern of skilled pitching was markedly different from that of unskilled pitching, especially in the rotation of the humerus and electromyographies.
3)Experiment with the shoulders of cadavers
From experiments of maximum circumduction of cadaver specimens, it was found that there exists linear relationship between the range of motion and the rotation of the humerus. This means restriction of rotation of the humerus causes decrease of the range of motion.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] 中川 照彦: "肩関節の3次元運動における可動域と回旋運動の関係" 肩関節. 14. 197-201 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 中川 照彦: "投球動作における肩関節運動の分析" 肩関節. 15. 189-194 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 森脇 正之: "肩甲骨および肩甲上腕関節の3次元運動の分析" 肩関節. 15. 195-199 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 中川 照彦: "肩関節の挙上運動における回旋運動の分析" 整形外科バイオメカニクス. 12. 165-169 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 前川 清之: "肩複合体の運動解析" バイオメカニズム. 11. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 中川 照彦: "健常肩関節の挙上運動における回旋運動の分析" 整形外科バイオメカニクス. 13. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Nakagawa et al: "Relationship between range of motion and rotation during circumduction of the shoulder." The Shoulder Joint.14. 197-201 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Nakagawa et al: "An analysis of rotational motion of the gleno-humeral joints in cadavers." Proc. Japanese Society for Orthopaedic Biomechanics.12. 165-169 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Nakagawa et al: "An analysis of the shoulder movement and EMG in pitching." The Shoulder Joint.15. 189-194 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Moriwaki et al: "Analysis of three dimensional motion of the scapula and the glenohumeral joint." The Shoulder Joint.15. 195-199 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Maekawa et al: "Motion analysis of the shoulder complex." Biomechanism.11.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Nakagawa et al: "Relation between elevation and rotation in the normal shoulders." Proc. Japanese Society for Orthopaedic Biomechanics.13.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 中川 照彦: "肩関節の3次元運動における可動域と回旋運動の間係" 肩関節. 14. 197-201 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中川 照彦: "投球動作における肩関節運動の分析" 肩関節. 15. 189-194 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 森脇 正之: "肩甲骨および肩甲上腕関節の3次元運動の分析" 肩関節. 15. 195-199 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中川 照彦: "肩関節の挙上運動における回旋運動の分析" 整形外科バイオメカニクス. 12. 165-169 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 前川 清之: "肩複合体の運動解析" バイオメカニズム. 11. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中川 照彦: "健常肩関節の挙上運動における回旋運動の分析" 整形外科バイオメカニクス. 13. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 中川 照彦: "肩関節の3次元運動における可動域と回旋運動の関係" 肩関節. 14ー2. 197-201 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 中川 照彦: "投球動作における肩関節運動の分析" 肩関節.

    • Related Report
      1990 Annual Research Report
  • [Publications] 森脇 正之: "肩甲骨および肩甲上腕関節の3次元運動の分析" 肩関節.

    • Related Report
      1990 Annual Research Report
  • [Publications] 中川 照彦: "肩関節の挙上運動における回旋運動の分析" 整形外科バイオメカニフス.

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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