2023 Fiscal Year Final Research Report
Construction of model-based characteristic parameters for the renovation of center of gravity sway tests
| Project/Area Number |
21H01270
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 20010:Mechanics and mechatronics-related
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| Research Institution | Utsunomiya University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
山仲 芳和 宇都宮大学, 工学部, 助教 (00804238)
嶋脇 聡 宇都宮大学, 工学部, 教授 (10344904)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 重心動揺 / ランダム制御系 / パラメータ同定 |
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| Outline of Final Research Achievements |
To obtain a dynamic model of center of pressure (COP) sway in human quiet standing, we proposed a new model that consists of a pendulum-type mechanical structure and a control structure with deadband characteristics and random fluctuations. We then solved a parameter identification problem to fit the probability density function (PDF) of the proposed model to the experimentally obtained PDF. Our identified model well reproduced the experimental results, including the bimodal PDF (two peaks) typical of human postural balance.
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| Free Research Field |
機械力学・制御
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| Academic Significance and Societal Importance of the Research Achievements |
世界に先駆けて，重心動揺検査の世界に，現代的な確率解析を導入し，その枠組みを利用しながら，重心動揺を 制御モデル化し，実測データから モデルパラメータを同定することで，重心動揺データのシステムパラメータ表示を実現した．得られたパラメータ表示は，医療分野における重心動揺検査の高度化のみならず，スポーツ科学分野における身体安定性の客観的な評価などへの貢献が期待される．
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