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最終更新日:2024/03/07

尾崎 宏樹

オザキ ヒロキ (Hiroki Ozaki)
論文
タイトル
一流卓球競技者の肩と腰の可動性が身体移動を伴う場面におけるフォアハンドトップスピンストロークに与える影響
タイトル(英)
The influence of shoulder and torso joint mobility on three different topspin forehands in a situation accompanied by body movement in Japanese elite table tennis players
参照URL
https://researchmap.jp/JISSHiro/published_papers/27658995
著者
城所 収二,稲葉 優希,吉田 和人,山田 耕司,尾崎 宏樹
著者(英)
担当区分
最終著者
概要
In table tennis rallies between elite players, rapid swing movements must be achieved in a posture that is difficult to maintain while maintaining body agility. Players are required to have both a high racket speed and quick swing ability. On the other hand, a large movable range during a back swing may be disadvantageous for realizing a rapid, high-speed swing. Against this background, we sought to investigate the shoulder and torso joint movement characteristics of elite table tennis players when performing topspin forehands with 3 types of body movement, and to clarify the relationship between the maximum range of motion and swing skill. Ten male elite players participated in this experiment. Each performed 3 types of stroke trial (chance ball task, step over task, and step around task) and the active ranges of motion in the shoulder and torso joints (ROM trial) were measured. The three-dimensional coordinates of body landmarks (thorax, pelvis, and dominant humerus) and the racket during measurement were acquired using an optical motion capture system. The relationship between the maximum backward rotation angle at the shoulder and torso joint, the racket speed at ball impact, and the start time of the forward swing in each segment or joint were investigated. There was no significant difference in the maximum horizontal abduction angle at the shoulder joint between ROM trial and stroke trial (p > 0.2). Maximum torso backward rotation angle in ROM trial was significantly larger than that in the stroke trial (p < 0.05). In ROM trial and each stroke trial, the anatomical and functional flexibility of the shoulder and torso joints did not positively affect the racket speed and swing time. Rather, performance tended to be better during smaller backswings. Therefore, table tennis players require muscle strength or a technique that increases joint stiffness during racket swings.
概要(英)
In table tennis rallies between elite players, rapid swing movements must be achieved in a posture that is difficult to maintain while maintaining body agility. Players are required to have both a high racket speed and quick swing ability. On the other hand, a large movable range during a back swing may be disadvantageous for realizing a rapid, high-speed swing. Against this background, we sought to investigate the shoulder and torso joint movement characteristics of elite table tennis players when performing topspin forehands with 3 types of body movement, and to clarify the relationship between the maximum range of motion and swing skill. Ten male elite players participated in this experiment. Each performed 3 types of stroke trial (chance ball task, step over task, and step around task) and the active ranges of motion in the shoulder and torso joints (ROM trial) were measured. The three-dimensional coordinates of body landmarks (thorax, pelvis, and dominant humerus) and the racket during measurement were acquired using an optical motion capture system. The relationship between the maximum backward rotation angle at the shoulder and torso joint, the racket speed at ball impact, and the start time of the forward swing in each segment or joint were investigated. There was no significant difference in the maximum horizontal abduction angle at the shoulder joint between ROM trial and stroke trial (p > 0.2). Maximum torso backward rotation angle in ROM trial was significantly larger than that in the stroke trial (p < 0.05). In ROM trial and each stroke trial, the anatomical and functional flexibility of the shoulder and torso joints did not positively affect the racket speed and swing time. Rather, performance tended to be better during smaller backswings. Therefore, table tennis players require muscle strength or a technique that increases joint stiffness during racket swings.
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
体育学研究
誌名(英)
体育学研究
64
1
開始ページ
169
終了ページ
185
出版年月
2019年6月
査読の有無
査読有り
招待の有無
掲載種別
ISSN
0484-6710
DOI URL
https://doi.org/10.5432/jjpehss.18029
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