@article{oai:ryotokuji-u.repo.nii.ac.jp:00000219,
 author = {越田, 専太郎 and 松田, 雅弘 and 石井, 孝法 and 山田, 利彦 and 金丸, 雄介 and 橋本, 俊彦},
 issue = {8},
 journal = {了德寺大学研究紀要},
 month = {},
 note = {適切な後ろ受身動作技術の習熟は, 柔道未経験者における頭部外傷予防に大きな意味を持つ. そこで, 本研究の目的は柔道未経験者における後ろ受身動作の特徴を明らかにすること, 短期練習が当動作に与える影響について検討することであった. 対象は1) 柔道経験を有さない, 2)重大な損傷を有さない, 3) 同じ柔道授業を受講している男子大学生4名であった. 柔道の後ろ受身動作時の3次元データを2回の介入前後で測定し, 頸部, 体幹, 股関節および膝関節角度を修正Miyashita法によって算出した. 各関節角度および頭部加速度の鉛直成分の変化曲線の一次回帰式を算出し, 介入前後で回帰係数の差を比較した(P = 0.05). その結果、頸部と体幹の角度変化には有意差が認められたものの, その差は小さいものであった. また, 股関節および膝関節角度変化は介入前後で有意差は認められなかった. 本研究では後ろ受身動作時の下肢関節角度に対して短期練習の効果はみられなかった. このことは未経験者に対する受身指導の際には下肢動作にも着目する必要があることを示唆している., Judo backward breakfall skill will play an important role in head injury prevention for judo beginners. Therefore, the objectives of the study were to illustrate the kinematic characteristics of judo backward breakfall movements in young individuals with no judo experience and compare before and after interventions of physical education classes concentrated on judo. We recruited four male collegiate students who 1) had no judo experience, 2) had no significant injuries, and 3) registered the same judo class. We obtained three-dimensional motion data of judo backward breakfall movements before and after intervention. The angle-time curves of neck, trunk, hip, and knee were calculated using modified Miyashita method. After calculating linear regression formulas for each angle-time curve, we used t-statistics to compare slopes (P< 0.05). The results demonstrated that the neck and trunk kinematics were significantly different; however, the both effect size were so small that the changes in neck and trunk kinematics may be negligible. There were no significant changes in knee and hip kinematics and vertical head acceleration between the pre- and post-tests. The result indicates that there is little effect of short-term intervention on the lower extremity biomechanics in judo breakfall, which suggests the movement of lower extremity may need more attention to better improve the kinematics of judo backward breakfall in judo teaching for beginners.},
 pages = {119--127},
 title = {柔道未経験者における後ろ受身動作の短期練習効果},
 year = {2014},
 yomi = {コシダ, センタロウ and マツダ, タダミツ and イシイ, タカノリ and ヤマダ, トシヒコ and カナマル, ユウスケ and ハシモト, トシヒコ}
}