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Title: 自己運動と模範運動の運動観察が外力利用運動の技術修得に与える効果
Authors: 小池, 貴行 Browse this author
犬飼, 祥雅 Browse this author
山田, 憲政 Browse this author →KAKEN DB
Keywords: action observation
self- and model’s movement
improvement of motor skill
drop jumping
leg stiffness modulation
Issue Date: Dec-2009
Publisher: 日本認知科学会
Journal Title: 認知科学
Volume: 16
Issue: 4
Start Page: 508
End Page: 522
Abstract: The purpose of this study was to investigate whether the action observation changes the learner's leg stiffness, representing mechanical state of global leg spring, during drop jump (DJ) and whether the process to observe the learner's and model's movement is effective method. We used the drop jump as trial movement, since its performance is influenced by the change in leg stiffness. 21 subjects we employed were divided into 3 groups (GPs) according to the observation type-GP1: observation of both the model's and their own DJ; GP2: observation of only the model's DJ; GP3: no observation with rest. The subjects performed DJ pre and post observation. Leg stiffness was estimated using the leg length (240 fps) and vertical ground reaction force (Fz) (2000 Hz) during stance phase and compared between pre- and post-tests in each group. In GP1, kinetic (the leg stiffness and maximum value of Fz) and kinematic (i.e., contact duration and change in leg compression) parameters in posttest were significantly higher and lesser than that in pretest, respectively. The results indicate that the leg stiffness is increased by the action observation and thus the observation procedure is effective to enhance the DJ skill that utilizes the external force. Further, the results suggest that observing learner's own and model's movements is to enhance the effect of action observation.
Type: article
Appears in Collections:教育学院・教育学研究院 (Graduate School of Education / Faculty of Education) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山田 憲政

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