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題 名 | Biomechanical Models for Modified Pendulum Test of the Upper Limb=上肢改良式鐘擺試驗之生物力學模型 |
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作 者 | 林宙晴; 林俊旺; 柯登耀; 朱銘祥; | 書刊名 | Journal of Medical and Biological Engineering |
卷 期 | 21:4 2001.12[民90.12] |
頁 次 | 頁257-263 |
分類號 | 410.1644 |
關鍵詞 | 鐘擺試驗; 痙攣; 肘部; 生物力學模型; Pendulum test; Spasticity; Elbow; Biomechanical model; |
語 文 | 英文(English) |
中文摘要 | 本研究之主要目的是發展和評估可以解釋上肢鐘擺試驗結果的生物力學模型。本文首先提出三個不同複雜程度的模型。模型一由簡單的彈簧和組尼元素所組成、模型二加入非線性組尼元素而模型三又加入一個可變粘彈構造。我們運用最佳化技術來估計這些模型的參數作為痙攣程度的可能指標。結果顯示,在模型一,估計所得的剛性係數和組尼係數在中風患者皆升高。在模型二中,雖然非線性元素稍微改善最佳化的結果,非線性效果在中風患者並沒有更為顯著。在模型三,最佳化沒有唯一解。總結,增加模型的複雜程度並沒有增加分析上肢鐘擺試驗結果所能區分痙攣與否的能力。由簡單線性模型估計所得之剛性係數和組尼係數在中風痙攣患者皆升高。 |
英文摘要 | The main goal of this study was to develop and evaluate biomechanical models for interpreting the results of pendulum test of the elbow. Three biomechanical models with different degrees of complexity were proposed. Model 1 consisted of simple spring and damping elements. In model 2, non-linear damping element was added. In model 3, a structure of thixotropic effect was added. By using optimization techniques, we estimated parameters from these models as the candidate indicators of spasticity. In model 1, the estimated stiffness constant and damping coefficient were larger in stroke patients with spasticity. In model 2, though adding a non-linear damping term marginally improved the optimization, the added non-linear damping effect was not more prominent in the stroke patients. In model 3, no unique solution could be obtained. We concluded that, for analyzing the results of upper limb pendulum test, increasing the complexity of models did not increase the capability to differentiate spasticity from normotonus. From the simple linear model, both stiffness constant and damping coefficient were increased in the stroke patients with spasticity. |
本系統中英文摘要資訊取自各篇刊載內容。