[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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We have studied about the tracking motion of the point of application of floor reaction force. We have developed a measurement system with a force plate, a video camera, and an eye movement camera, and performed an experiment. The experiment is that the subject on the force plate shifts his body weight according to the reference point on the computer display. We have analyzed these data from the viewpoints of the response waveform, the difference depending on the directions of weight shifting, the difference among subjects, and the learning process. We conclude that this measurement system is effective for the comprehensive analysis of body weight shifting motion.

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The goal of this study is to clarify the effects of timbre that is Kansei information, on right arm motions of bowing of violin playing, and image of timbre. Two professional violinists' were required to play D string with twenty-eight timbres, and their right arm motions, bow force and bow speed were measured. A questionnaire on the image of timbres was also performed. Right arm motion and image of timbre in same bow force and speed were analyzed. However, clear tendency was not found. Consequently, we concluded that timbre does not affect the motion but the playing parameters such as bow force and bow speed.

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