Quantification of bradykinesia using gyro-sensors during clinical motor examination in idiopathic parkinson's disease patients

J. W. Kim, Y. R. Kwon, G. M. Eom, D. Y. Kwon, S. B. Koh, B. K. Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study is to develop a quantitative measure of the bradykinesia which can be conveniently used during clinical motor examination (finger taps, forearm pronation/supination, foot-taps) in patients with Parkinson's disease. Forty Parkinson's disease patients, 14 age-matched elderly subjects and 17 healthy young subjects participated in the experiments. Severity of bradykinesia in both right and left side were rated by two independent neurologists according to the unified Parkinson's disease rating scale (UPDRS). Angular velocity of finger forearm and foot during clinical rating was measured by the gyrosensor system and action tremor was eliminated. As quantitative measures, root-mean-squared (RMS) angular velocity, RMS angle, peak power and total power were used. ANOVA showed that all measures in all three examinations are significantly different among three subject groups (p<0.001). The spearman's rho between the suggested measures and UPDRS score was -0.730~-0.780 for finger taps, -0.609~-0.836 for forearm pronation/supination, -0.689~-0.825 for foot taps. The results suggest that the indices from a gyrosensor can be used as quantitative measures of bradykinesia during several clinical motor examinations.

Original languageEnglish
Title of host publication6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech
Pages1286-1287
Number of pages2
DOIs
Publication statusPublished - 2010
Event6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech - Singapore, Singapore
Duration: 2010 Aug 12010 Aug 6

Publication series

NameIFMBE Proceedings
Volume31 IFMBE
ISSN (Print)1680-0737

Other

Other6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech
CountrySingapore
CitySingapore
Period10/8/110/8/6

Keywords

  • Idiopathic Parkinson's disease
  • angular velocity
  • bradykinesia
  • gyro sensor
  • quantification

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering

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  • Cite this

    Kim, J. W., Kwon, Y. R., Eom, G. M., Kwon, D. Y., Koh, S. B., & Park, B. K. (2010). Quantification of bradykinesia using gyro-sensors during clinical motor examination in idiopathic parkinson's disease patients. In 6th World Congress of Biomechanics, WCB 2010 - In Conjunction with 14th International Conference on Biomedical Engineering, ICBME and 5th Asia Pacific Conference on Biomechanics, APBiomech (pp. 1286-1287). (IFMBE Proceedings; Vol. 31 IFMBE). https://doi.org/10.1007/978-3-642-14515-5_326