肩関節最大外旋位における投球動作解析

• 髙木 陽平

  兵庫医科大学病院　整形外科／信原病院　バイオメカニクス研究所

• 大井 雄紀

  兵庫医科大学病院　整形外科／信原病院　バイオメカニクス研究所

• 吉矢 晋一

  兵庫医科大学病院　整形外科

• 乾 浩明

  信原病院　バイオメカニクス研究所

• 信原 克哉

  信原病院　バイオメカニクス研究所

• 藤岡 宏幸

  兵庫医療大学　リハビリテーション学部

書誌事項

タイトル別名

• Three-dimensional kinetic and kinematic analysis of throwing motion at maximum shoulder external rotation in pitchers
• 症例報告 転位した膝外側円板状半月板外周縁損傷に対し,形成縫合術を行い,スポーツ復帰が可能であった社会人ラグビー選手の1例
• ショウレイ ホウコク テンイ シタ ヒザ ソトガワ エンバンジョウ ハンゲツバン ガイシュウエン ソンショウ ニ タイシ,ケイセイ ホウゴウジュツ オ オコナイ,スポーツ フッキ ガ カノウ デ アッタ シャカイジン ラグビー センシュ ノ 1レイ

抄録

Background: Shoulder injuries in baseball pitchers often occur at the maximum external rotation (MER). However, in the past, amounts and directions of the force applied to the shoulder at this moment during throwing motion has not been clarified. The purpose of this study was to analyze forces applied to the shoulder.<BR>Methods: Biomechanical analysis was performed on 213 pitchers with various skill levels. Throwing motion was measured using motion capture system. To describe angular values of the upper arm relative to the trunk, Euler angle sequence was utilized. In order to estimate the resultant joint forces at the shoulder, an inverse dynamics technique was employed.<BR>Results: The relationship between horizontal abduction/adduction angle and resultant anterior/posterior force at the MER showed significant correlation (r=-0.63, p < 0.05). The increase in horizontal abduction at this moment was associated with increased resultant anterior force. The horizontal adduction angle with minimal resultant anterior/posterior force at MER was 1.79°. Superior/inferior force at MER was poorly correlated with abduction/adduction angle, showing increased adduction angle associated with higher resultant force toward superior direction. Regarding the relationship between age and throwing kinematics, horizontal abduction angle at MER was larger in young pitchers than adult pitchers.<BR>Conclusion: Comparison between horizontal abduction angle and anterior shear force at the MER in the throwing motion showed significant correlation. Evaluation and correction of the throwing motion focusing on horizontal abduction at MER may be a key to the reduction of harmful stresses leading to shoulder injuries among pitchers.

収録刊行物

• 肩関節

  肩関節 37 (2), 431-434, 2013

  日本肩関節学会

キーワード

• 投球解析
• 最大外旋位
• 水平外転

詳細情報

• CRID: 1390001204758102144
• NII論文ID: 10031171184
• NII論文ID: 130003384309
• NII書誌ID: AA11429267
• ISSN: 13464159
• ISSN: 18816363
• ISSN: 09104461
• DOI: 10.11296/katakansetsu.37.431
• NDL書誌ID: 024724154
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024724154
• Web Site: https://search.jamas.or.jp/link/ui/2014299728
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可