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Nara Women's University Digital Information Repository > 040 大学院人間文化研究科 > 人間文化研究科年報 > 第25号 >

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タイトル: 押し動作時の外乱に対する姿勢制御方略
その他のタイトル: Postural strategy in response to disturbance during pushing movements
著者: 岡井, 理香
著者(別表記) : Okai, Rika
著者読み: おかい, りか
キーワード: 押し動作; 外乱; 予測; 姿勢制御; 柔道
発行日: 2010年 3月31日
出版者: 奈良女子大学大学院人間文化研究科
引用: 人間文化研究科年報, 第25号, pp.257-270
抄録: In competitions like Judo and Sumo, where opponents wrestle with each other, evasive actions when one opponent has predicted the move of the other can lead to the toppling of the lager opponent. This research investigates postural control during such kinds of activities, while consider predictable postural adjustment function. “Pushing strength”was measured by a device with a lever which could work for a subject forward. The differing degree of predictability for postural disturbance (movement of the lever) was examined in 10 subjects under the following 2 conditions of pushing movement while in standing position: in Known condition the subject was informed of the lever movement, and in Unknown condition the subject was not informed of the lever movement. Under both condition, 18 trials involved movement (Movable task) and 12 trials involved no movement (Stationary task) for a total of 36 trials conducted in random order. Subjects were instructed to push the lever forcefully and as quickly as possible on an visual stimulus, or to regain their standing posture if the lever moved. Posture, center of mass (COM) and tension observed during each task was recorded, and the following results were obtained. 1) In all subject showed a positive correlation of the displacement of COM between Known and Unknown condition in Movable task, and as for those correlations, the difference was seen in each subject in Stationary task. 2) In all subjects showed a positive correlation of the pushing strength and the displacement in station- ary task under Unknown condition. As a result, it was suggested that the movement be accomplished based on the postural control with which it provided in one with a high risk under a more uncertain prediction, and the effect on the COM by the prediction for the forward disturbance influenced directly the pattern of the pushing strength.
URI: http://hdl.handle.net/10935/1633
ISSN: 09132201
出現コレクション:第25号

このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10935/1633

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