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本文引用的文献

1
Identification of time-varying intrinsic and reflex joint stiffness.时变固有和反射关节刚度的识别。
IEEE Trans Biomed Eng. 2011 Jun;58(6):1715-23. doi: 10.1109/TBME.2011.2113184. Epub 2011 Feb 10.
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Identification of apparently acausal stiffness models.
Conf Proc IEEE Eng Med Biol Soc. 2005;2005:5611-4. doi: 10.1109/IEMBS.2005.1615758.
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Intrinsic and reflex contributions to human ankle stiffness: variation with activation level and position.人体踝关节僵硬的内在和反射因素：随激活水平和位置的变化
Exp Brain Res. 2000 Dec;135(4):423-36. doi: 10.1007/s002210000534.
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Estimation of intrinsic and reflex contributions to muscle dynamics: a modeling study.肌肉动力学中内在和反射贡献的估计：一项建模研究。
IEEE Trans Biomed Eng. 2000 Nov;47(11):1413-21. doi: 10.1109/TBME.2000.880092.
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Identification of intrinsic and reflex contributions to human ankle stiffness dynamics.确定人体踝关节刚度动力学的内在和反射因素。
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Time-varying mechanical behavior of multijointed arm in man.人体多关节手臂的时变力学行为。
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System identification of human joint dynamics.人体关节动力学的系统识别
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Estimation of joint impedance using short data segments.

作者信息

Ludvig Daniel, Perreault Eric J

机构信息

Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, IL 60657, USA.

出版信息

Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:4120-3. doi: 10.1109/IEMBS.2011.6091023.

DOI:10.1109/IEMBS.2011.6091023
PMID:22255246
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3649129/
Abstract

Joint impedance is an important property of the human muscular system and plays a role in the control of movement and posture. Previous studies showed that joint impedance varies with the position of the joint and activation level of the surrounding muscles; however, it remains unknown how it varies during movement. Non-parametric algorithms that estimate time-varying impedance do exist; however these algorithms require hundreds of realizations of the same time-varying behavior. In this paper we develop a non-parametric algorithm that can estimate slowly time-varying impedance using multiple short data segments. Using simulated data we evaluate the desired data segment length and the number of realizations needed to yield accurate estimates.

摘要