武道学研究
Online ISSN : 2185-8519
Print ISSN : 0287-9700
ISSN-L : 0287-9700
剣道の正面打撃動作における打撃目標の高低差と打撃力について
大矢 稔百鬼 史訓横山 直也山神 眞一
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1996 年 29 巻 2 号 p. 27-35

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We measured the impact force in face-mask attacks, using as subjects ten male university students who major kendo and practice everyday. Three different attacking points were set: (a) 15 cm lower than the subject's height, (b) the same height as the subject, (c) 15 cm higher than the subject's height, and the subjects performed face-mask attacks to each point. We analyzed the difference of the elements in the impact force. By using a motion analysis system with a video tape recorder, we also analyzed the technical characteristics which are considered to influence the elements in the impact force. The following are the obtained results:
1. As the attacking point was set higher, the forward maximum impact force and impulse became the greater, but on the contrary, the downward maximum impact force and impulse became smaller. As the attacking points were set higher, the forward force and the downward force were more reciprocated.
2. The subject A showed the narrowest angle between the Shinai and the forarms at the moment of attack. As the attacking point was set higher, the angle became wider, and the subject C showed the widest angle. These facts were significantly related with the generation of the forward force and the downward force in the impact force.
3. The subject A used the farthest hitting part of Shinai and the subject C used the nearest hitting part of Shinai. It was observed that as the attacking points were set higher, the subjects used farther hitting part of Shinai.
4. It was suggested the hitting portion of Shinai and the active period of force were related, although the attacking points were set variously.

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