Angular momentum in skilled kicking pullover performed by elementary school children

Topics in Exercise Science and Kinesiology 3 巻 1 号 Article 2- 頁 2022 発行
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タイトル
Angular momentum in skilled kicking pullover performed by elementary school children
著者
Nishimura Saburo
Matsushita Shoichi
収録物名
Topics in Exercise Science and Kinesiology
3
1
開始ページ Article 2
収録物識別子
ISSN 2766-2187
内容記述
その他
This study aimed to clarify the differences in body positions and the role of the swing leg, support leg, and head-arm-trunk segment in generating and maintaining angular momentum of the whole body about a horizontal bar as well as how to improve the skill level of successful kicking pullover attempts. Two-dimensional kinematic parameters of successful kicking pullover attempts and body composition indices of 26 fifth-grade elementary school children were collected. Their techniques were classified into excellent and good groups based on the subjective evaluation of three evaluators. Although there were no significant differences in body composition indices between the two groups, the motion phase time during the 4th phase and the total time of the excellent group were significantly shorter compared with the good group. Also, the counterclockwise rotation of the angular momentum of the head-arm-trunk segment and the whole body during the 4th phase was significantly larger in the excellent group than in the good group. These results suggest that maintaining the angular momentum of the head-arm-trunk segment during the 4th phase leads to attempts with shorter time and improves skill levels from the good group to the excellent group. The good group was not able to maintain angular momentum of the whole body during the 4th phase because the peak of the angular momentum of the head-arm-trunk segment and support leg tended to appear earlier than in the excellent group. we newly clarified that teachers need to focus on the body position of the trunk and head during the 4th phase in order for elementary school children to succeed in kicking pullovers more beautifully at a higher level.
言語
英語
資源タイプ 学術雑誌論文
出版者
bepress
発行日 2022
権利関係(リンク) Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
関連情報
[URI] https://digitalscholarship.unlv.edu/scholarship_kin/vol3/iss1/2