Assessment of muscle spasticity by a simple pendulum test and modeling

Jae Hoon Jun; Se Jin Kong; Chul Seung Kim; Gwang Moon Eom; Soon Hyuk Lee; Kazunori Hase

doi:10.4028/0-87849-412-x.1008

Assessment of muscle spasticity by a simple pendulum test and modeling

Jae Hoon Jun, Se Jin Kong, Chul Seung Kim, Gwang Moon Eom, Soon Hyuk Lee, Kazunori Hase

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The quantitative and objective evaluation of spasticity is desirable in rehabilitation and orthopedics where subjective evaluations are mostly used. In the present study, data from a simple pendulum test are used for the evaluation of the spasticity with the help of biomechanical modeling. The spasticity of a knee joint is modeled as nonlinear feedback of muscle lengthening velocity and the muscle length. Through the optimization of the modeling error, the feedback parameters are determined. The threshold of muscle lengthening velocity in the reflex system is suggested as a severity index of the spasticity.

Original language	English
Pages (from-to)	1008-1011
Number of pages	4
Journal	Key Engineering Materials
Volume	321-323 II
DOIs	https://doi.org/10.4028/0-87849-412-x.1008
Publication status	Published - 2006

Keywords

Feedback
Lengthening velocity
Muscle length
Pendulum test
Spasticity

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.4028/0-87849-412-x.1008

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abstract = "The quantitative and objective evaluation of spasticity is desirable in rehabilitation and orthopedics where subjective evaluations are mostly used. In the present study, data from a simple pendulum test are used for the evaluation of the spasticity with the help of biomechanical modeling. The spasticity of a knee joint is modeled as nonlinear feedback of muscle lengthening velocity and the muscle length. Through the optimization of the modeling error, the feedback parameters are determined. The threshold of muscle lengthening velocity in the reflex system is suggested as a severity index of the spasticity.",

keywords = "Feedback, Lengthening velocity, Muscle length, Pendulum test, Spasticity",

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AU - Jun, Jae Hoon

AU - Kong, Se Jin

AU - Kim, Chul Seung

AU - Eom, Gwang Moon

AU - Lee, Soon Hyuk

AU - Hase, Kazunori

PY - 2006

Y1 - 2006

N2 - The quantitative and objective evaluation of spasticity is desirable in rehabilitation and orthopedics where subjective evaluations are mostly used. In the present study, data from a simple pendulum test are used for the evaluation of the spasticity with the help of biomechanical modeling. The spasticity of a knee joint is modeled as nonlinear feedback of muscle lengthening velocity and the muscle length. Through the optimization of the modeling error, the feedback parameters are determined. The threshold of muscle lengthening velocity in the reflex system is suggested as a severity index of the spasticity.

AB - The quantitative and objective evaluation of spasticity is desirable in rehabilitation and orthopedics where subjective evaluations are mostly used. In the present study, data from a simple pendulum test are used for the evaluation of the spasticity with the help of biomechanical modeling. The spasticity of a knee joint is modeled as nonlinear feedback of muscle lengthening velocity and the muscle length. Through the optimization of the modeling error, the feedback parameters are determined. The threshold of muscle lengthening velocity in the reflex system is suggested as a severity index of the spasticity.

KW - Feedback

KW - Lengthening velocity

KW - Muscle length

KW - Pendulum test

KW - Spasticity

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JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

Assessment of muscle spasticity by a simple pendulum test and modeling

Abstract

Keywords

ASJC Scopus subject areas

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