著者
堀内 元 中島 大貴 桜井 伸二
出版者
一般社団法人 日本体育学会
雑誌
体育学研究 (ISSN:04846710)
巻号頁・発行日
pp.18026, (Released:2018-09-07)
参考文献数
17

The purpose of this study was to clarify the exertion of torque and motion related to the generation of mechanical energy in both hip joints during baseball batting. The participants were 98 male amateur baseball players (body height: 172.6±5.6cm, body weight: 70.3±8.1kg, age: 19.0±1.9yr, career: 11.0±2.8yr). The batting motion was recorded using a motion capture system (10cameras, 250Hz), and the ground reaction forces acting on each foot were estimated using 2 force plates (1000Hz). Hip joint angles were expressed as Euler angle of the thigh relative to the lower torso. Hip joint torques were calculated using inverse dynamics. Other kinetic variables–e.g. hip joint torque power, mechanical work by hip joint torque–were also calculated. The main results were as follows: 1. Throughout the analysis phase, there was no significant correlation between the bat head speed at impact and the angles of both hip joints. 2. For the hip joint on the pitcher side, the generation of mechanical energy by flexion and adduction torque was large during the phase before maximum pelvis rotational velocity. 3. For the hip joint on the catcher side, the generation of mechanical energy by extension torque was large in the phase before maximum pelvis rotational velocity. These results suggest that there are no differences in the kinematics of both hip joints depending on the bat head speed at impact. In addition, it is indicated that the ability to exert flexion and adduction torques for the hip joint on the pitcher side and the extension torque for the hip joint on the catcher side during baseball batting motion contribute to the generation of mechanical energy.

言及状況

外部データベース (DOI)

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軸足股関節の伸展トルクと踏み込み脚股関節の伸展トルク、また、それらによって生成された力学的エネルギーがスイングスピードに関与している可能性があるかも知れない。 という研究結果が出ています。 元の研究が2013と少し前なので、こちらの方が新しい情報かと。 https://t.co/oaocgxkwrN https://t.co/TmaMseoqwV
成功する打者になるためにはバットのスイング速度を向上させる ↓ その利点 ☑スイング時間の短縮 ☑判断時間の増大 ☑打球速度の増大 ↓ 特に打球速度の増大は打球が速くかつ遠くへ飛ばすことにつながる https://t.co/Id5KMtinC5

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