A basic study of new sensory feedback system for postural control by use of a mixed reality technology

利用混合现实技术进行姿势控制的新型感觉反馈系统的基础研究

• 批准号: 17603001
• 负责人: TANAKA Toshiaki
• 金额: $ 2.24万
• 依托单位: Sapporo City University (2006)Sapporo Medical University (2005)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17603001/
• 关键词: balance training; mixed reality; vibratory stimulation; feedback of visual information; assistive engineering; 姿勢制御

[PURPOSE] The purpose of this study was to analyze the effects of the vibratory feedback system between the force plate and vibratory stimulation for maintaining good standing balance. [METHODS] The young adult and the elderly were participated in the experiment. All subjects were independent in their activities of daily living. The vibratory feedback system has three units, vibratory device unit, and force plate unit, feedback control unit. The vibratory device unit was composed of eight vibrators with sponge foot mats and the belt at their waist, respectively.. The system needs the feedback for the subjects to inform from of their condition of standing balance. The force plate unit recorded the center of pressure (COP) data in real time. The feedback control unit was activated if the trajectory of the COP reaches a position of forefeet, which has been determined by the examiner, the vibrators under the forefeet and their waist. The prospective target position was defined as 50 % and 110 % of the maximal displacement of the COP in each subject, which was obtained from the modified Cross-test. The subjects stood on the force plate for 7 seconds as the start position and then they tried to reach the target position in each direction for 6 seconds and finally maintain at the maximal position for 7 seconds. [RESULT] The accuracy of the COP movement to the vibratory presentation distance showed a high accuracy that exceeded 80% in the subjects. It means that this vibratory stimulation seems effective as providing posture information. [CONCLUSION] The results suggest that the vibratory feedback may positively affect postural balance within the base of support. It might be hypothesized that this system may be able to help in the control of body sway as a special device for balance training or postural stability awareness attention.

[目的]分析振动反馈系统对维持良好站立平衡的作用。[方法]实验对象为青年人和老年人。所有受试者的日常生活活动都是独立的。振动反馈系统由振动装置单元、测力板单元和反馈控制单元三部分组成。振动装置单元由八个振动器组成，分别带有海绵脚垫和腰部带。该系统需要被试的反馈，以告知他们的站立平衡状况。测力板单元真实的实时记录压力中心（COP）数据。如果COP的轨迹到达由检查者确定的前足位置、前足下方的振动器和他们的腰部，则激活反馈控制单元。前瞻性目标位置定义为每例受试者COP最大位移的50%和110%，这是从改良的交叉检验中获得的。受试者在测力板上站立7s作为起始位置，然后在每个方向上尝试达到目标位置6s，最后在最大位置保持7s。[结果]受试者COP运动对振动呈现距离的准确性较高，超过80%。这意味着这种振动刺激似乎有效地提供姿势信息。[结论]振动反馈对人体在支撑基础内的姿势平衡有积极的影响。可以假设，该系统可能能够作为用于平衡训练或姿势稳定性意识注意的特殊装置来帮助控制身体摇摆。

项目成果

外乱床回転性振動刺激による姿勢保持能力の検討

使用干扰地板旋转振动刺激检查姿势维持能力

• 发表时间: 2005
• 期刊: 第31回日本理学療法学術大会論文集 Vol.32、No.2
• 作者: R.Kato;M.Kunimatsu;et al.;岡村 聖;前田 佑輔
• 通讯作者: 前田 佑輔

随意力の範囲の変化に対応するスイッチシステムの基礎研究.

响应随意力范围变化的开关系统的基础研究。

• 发表时间: 2006
• 期刊: 第21回リハ工学カンファレンス講演論文集 25-E-11
• 作者: 島倉和史;泉 隆
• 通讯作者: 泉 隆

足底面振動刺激による足圧中心位置情報の呈示効果

利用足底振动刺激呈现足部压力中心位置信息的效果

• 发表时间: 2005
• 期刊: 第31回日本理学療法学術大会論文集 Vol.32、No.2,
• 作者: Yoshihide Kondo;Shigenobu Nakamura;Utako Kurihara;白銀暁
• 通讯作者: 白銀暁

CLINICAL ASSESSMENT METHOD OF LEFT UNILATERAL SPATIAL NEGLECT USING A HEAD MOUNTED DISPLAY SYSYTEM.

使用头戴式显示系统的左侧单侧空间忽视的临床评估方法。

• 发表时间: 2007
• 期刊: 15th International Congress of the World Confederation for Physical Therapy (Proceedings) (in press)
• 作者: 土井俊祐;青山吉隆;中川大;柄谷友香;近成 純;Toshiaki Tanaka
• 通讯作者: Toshiaki Tanaka

振動触覚フィードバックによる運動制御方法の検討 -上下肢のリハビリテーションへの応用-

利用振动触觉反馈的运动控制方法的研究-在上下肢康复中的应用-

• 发表时间: 2005
• 期刊: 日本バーチャルリアリティ学会第10回大会論文集 2D1-6
• 作者: B.J.Park;K.Takatoi;M.H.Lee;D.Han;Y.I.Woo;H.J.Son;J.K.Kim;K.Chung;S.O.Hyun;J.Park;山本哲正
• 通讯作者: 山本哲正