Assessment of muscle spasticity by a simple pendulum test and modeling

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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)1008-1011
Number of pages4
JournalKey Engineering Materials
Volume321-323 II
Publication statusPublished - 2006 Oct 12

Fingerprint

Pendulums
Muscle
Nonlinear feedback
Orthopedics
Patient rehabilitation
Feedback

Keywords

  • Feedback
  • Lengthening velocity
  • Muscle length
  • Pendulum test
  • Spasticity

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

Cite this

Jun, J. H., Kong, S. J., Kim, C. S., Eom, G. M., Lee, S-H., & Hase, K. (2006). Assessment of muscle spasticity by a simple pendulum test and modeling. Key Engineering Materials, 321-323 II, 1008-1011.

Assessment of muscle spasticity by a simple pendulum test and modeling. / Jun, Jae Hoon; Kong, Se Jin; Kim, Chul Seung; Eom, Gwang Moon; Lee, Soon-Hyuck; Hase, Kazunori.

In: Key Engineering Materials, Vol. 321-323 II, 12.10.2006, p. 1008-1011.

Research output: Contribution to journalArticle

Jun, JH, Kong, SJ, Kim, CS, Eom, GM, Lee, S-H & Hase, K 2006, 'Assessment of muscle spasticity by a simple pendulum test and modeling', Key Engineering Materials, vol. 321-323 II, pp. 1008-1011.
Jun JH, Kong SJ, Kim CS, Eom GM, Lee S-H, Hase K. Assessment of muscle spasticity by a simple pendulum test and modeling. Key Engineering Materials. 2006 Oct 12;321-323 II:1008-1011.
Jun, Jae Hoon ; Kong, Se Jin ; Kim, Chul Seung ; Eom, Gwang Moon ; Lee, Soon-Hyuck ; Hase, Kazunori. / Assessment of muscle spasticity by a simple pendulum test and modeling. In: Key Engineering Materials. 2006 ; Vol. 321-323 II. pp. 1008-1011.
@article{d9d84c557bc64d61bc13c5807a957339,
title = "Assessment of muscle spasticity by a simple pendulum test and modeling",
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",
author = "Jun, {Jae Hoon} and Kong, {Se Jin} and Kim, {Chul Seung} and Eom, {Gwang Moon} and Soon-Hyuck Lee and Kazunori Hase",
year = "2006",
month = "10",
day = "12",
language = "English",
volume = "321-323 II",
pages = "1008--1011",
journal = "Key Engineering Materials",
issn = "1013-9826",
publisher = "Trans Tech Publications",

}

TY - JOUR

T1 - Assessment of muscle spasticity by a simple pendulum test and modeling

AU - Jun, Jae Hoon

AU - Kong, Se Jin

AU - Kim, Chul Seung

AU - Eom, Gwang Moon

AU - Lee, Soon-Hyuck

AU - Hase, Kazunori

PY - 2006/10/12

Y1 - 2006/10/12

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

UR - http://www.scopus.com/inward/record.url?scp=33749474343&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749474343&partnerID=8YFLogxK

M3 - Article

VL - 321-323 II

SP - 1008

EP - 1011

JO - Key Engineering Materials

JF - Key Engineering Materials

SN - 1013-9826

ER -