Stability of the human ankle in relation to environmental mechanics
Stability of the human ankle in relation to environmental mechanics
复制标题
人类脚踝的稳定性与环境力学的关系
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Hyunglae Lee
中科院分区：
文献类型：
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作者：
Harrison Hanzlick;H. Murphy;Hyunglae Lee
本文提出了量化的多维踝关节稳定性的机械环境具有不同程度的稳定性。这项研究，第一次，探讨了刚度定义的触觉环境的范围内，年轻健康的人可以保持稳定，尽管侵略性扰动。踝关节稳定性在踝关节的2个自由度（DOF）中进行量化，包括矢状面和额状面。重要的是，受试者能够保持稳定性的负环境刚度的大小在矢状面中是在额状面中的4倍。除了在矢状面管理更广泛的不稳定环境外，受试者在扰动后恢复稳定性的效率也更高，对环境刚度的变化不太敏感。这项研究的结果将是有益的设计和控制的机器人与人类下肢，如下肢外骨骼和动力踝足矫形器的物理交互。
This paper presents quantification of multidimensional ankle stability in relation to mechanical environments having different levels of stability. This study, for the first time, explores the range of stiffness-defined haptic environments over which young healthy individuals can maintain stability despite aggressive perturbation. Ankle stability was quantified in 2 degree-of-freedom (DOF) of the ankle, in both the sagittal and frontal planes. Importantly, the magnitude of negative environmental stiffness that the subjects could maintain stability is 4 times as great in the sagittal plane as in the frontal plane. In addition to managing a wider range of unstable environments in the sagittal plane, subjects were also more efficient at regaining stability after perturbation and less sensitive to changes in the environmental stiffness. Outcomes of this study would be beneficial to the design and control of robots physically interacting with human lower extremities, such as lower-limb exoskeletons and powered ankle-foot orthoses.
DOI：
10.1115/1.4007181
发表时间：
2012-12-12
期刊：
Journal of medical devices
影响因子：
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作者：
Quintero HA;Farris RJ;Goldfarb M
通讯作者：
Goldfarb M