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最終更新日:2024/02/01

木村 新

キムラ アラタ (Arata Kimura)
論文
タイトル
Contribution of hip joint kinetics to rotate the pelvis during baseball pitching
タイトル(英)
Contribution of hip joint kinetics to rotate the pelvis during baseball pitching
参照URL
https://researchmap.jp/kimuraarata/published_papers/25765052
著者
Arata Kimura,Shinsuke Yoshioka,Senshi Fukashiro
著者(英)
Arata Kimura,Shinsuke Yoshioka,Senshi Fukashiro
担当区分
筆頭著者,責任著者
概要

This study examined the effects of hip joint kinetics on pelvic rotation about the superior-inferior (SI) axis during baseball pitching from the viewpoint of energetics. Twelve right-handed males participated and all used an overarm style. Five participants were active collegiate baseball players and seven participants were former collegiate baseball players. Each participant was instructed to try their maximum effort pitch from an indoor pitching mound. Three pitches per participant that passed through the strike zone were selected for analysis. A motion capture system consisting of 13 cameras and two force platforms were used to collect data and calculate joint torques. Pelvic rotation torque, mechanical energy generation, and transfer were calculated. The hip external rotation torque transferred the mechanical energy from the thigh to the pelvis in the pivot leg, which mainly increased the mechanical energy of the pelvis about the SI axis. Regarding the stride leg, the hip adduction torque generated the mechanical energy, which mainly increased the mechanical energy of the pelvis about the SI axis. The findings highlight the importance of these torques in rotating the pelvis about the SI axis.

概要(英)

This study examined the effects of hip joint kinetics on pelvic rotation about the superior-inferior (SI) axis during baseball pitching from the viewpoint of energetics. Twelve right-handed males participated and all used an overarm style. Five participants were active collegiate baseball players and seven participants were former collegiate baseball players. Each participant was instructed to try their maximum effort pitch from an indoor pitching mound. Three pitches per participant that passed through the strike zone were selected for analysis. A motion capture system consisting of 13 cameras and two force platforms were used to collect data and calculate joint torques. Pelvic rotation torque, mechanical energy generation, and transfer were calculated. The hip external rotation torque transferred the mechanical energy from the thigh to the pelvis in the pivot leg, which mainly increased the mechanical energy of the pelvis about the SI axis. Regarding the stride leg, the hip adduction torque generated the mechanical energy, which mainly increased the mechanical energy of the pelvis about the SI axis. The findings highlight the importance of these torques in rotating the pelvis about the SI axis.

出版者・発行元
一般社団法人 日本体育学会
出版者・発行元(英)
Japan Society of Physical Education, Health and Sport Sciences
誌名
International journal of sport and health science
誌名(英)
International journal of sport and health science
18
0
開始ページ
16
終了ページ
27
出版年月
2020年8月
査読の有無
査読有り
招待の有無
掲載種別
研究論文(学術雑誌)
ISSN
1348-1509
DOI URL
https://doi.org/10.5432/ijshs.201920
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