2021 Fiscal Year Final Research Report
Patient simulator of physical disabilities to innovate the research on assistive technologies
| Project/Area Number |
19K21584
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Studies on the Super-Aging Society
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| Research Institution | Tokyo Metropolitan University (2021)
Nagoya University (2019-2020) |
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Principal Investigator |
OKAMOTO Shogo 東京都立大学, システムデザイン研究科, 准教授 (10579064)
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| Project Period (FY) |
2019-06-28 – 2022-03-31
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| Keywords | 膝 / 疼痛 / 起立着座 / 電流刺激 / 患者シミュレータ |
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| Outline of Final Research Achievements |
As a method for a healthy person to simulate the movement of a patient with unilateral knee osteoarthritis, we developed a method to apply cutaneous current stimulation to the knee as an alternative stimulus for pain. A pulse stimulus was used as a current stimulus such that it monotonically increases with the knee joint moment during movements such as standing and sitting. The inter-pulse interval of the current stimulus was decreased as the knee moment increased. In experiments, healthy participants were instructed to take actions to avoid the intense current stimulus felt on the knee. As a result, they have avoided movements with large joint moments that are associated with pain. Specifically, we applied this experiment to the standing and sitting movements and found similarities between the simulation and the actual patient movements.
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| Free Research Field |
ハプティクス・運動と感覚・支援システム
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| Academic Significance and Societal Importance of the Research Achievements |
関節症などを理由とする運動機能障がい者を支援・介助する機器を開発する際，疼痛を有する実際の患者が試験に参加して量的に十分なデータを供することは，倫理・安全面から許容されない．そこで，疼痛の代わりに健常者の皮膚に電流刺激を与え，健常者に疼痛患者の動作を模擬させるというシルバーシミュレーションを開発することが本研究の目的であり，片側膝関節症患者の典型的な起立着座動作を例にその手法と有効性を示すことに成功した．
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