Fractal dimension analysis of static stabilometry in Parkinson's disease and spinocerebellar ataxia

Y. Manabe, E. Honda, Y. Shiro, K. Sakai, I. Kohira, K. Kashihara, T. Shohmori, Koji Abe

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The static stabilometry patterns associated with Parkinson's disease (PD, n = 15) and spinocerebellar ataxia (SCA, n = 15) were compared with those of normal control (n = 15) by measuring the fractal dimensions. Fractal dimensions were estimated using the modified pixel dilation (mPD) method. The fractal dimensions with closed eyes showed a significant correlation with Environmental area for SCA group (p <0.05). The fractal dimension for SCA group was significantly higher with closed eyes than that with open eyes (p <0.05). The fractal dimension with closed eyes was significantly higher in PD and SCA groups than that in normal group (p <0.05). The fractal dimension with closed eyes was higher when the clinical stage was more severe with PD and SCA group while Environmental and Longitude/Environmental areas were not. These findings suggest that the fractal dimension is more sensitive than traditional stabilometric analysis in an evaluation of postural instability in PD and SCA.

Original languageEnglish
Pages (from-to)397-404
Number of pages8
JournalNeurological Research
Volume23
Issue number4
DOIs
Publication statusPublished - 2001

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Spinocerebellar Ataxias
Fractals
Parkinson Disease
Dilatation

Keywords

  • Fractal dimension
  • Parkinson's disease
  • Spinocerebellar ataxia
  • Static stabilometry

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

Cite this

Fractal dimension analysis of static stabilometry in Parkinson's disease and spinocerebellar ataxia. / Manabe, Y.; Honda, E.; Shiro, Y.; Sakai, K.; Kohira, I.; Kashihara, K.; Shohmori, T.; Abe, Koji.

In: Neurological Research, Vol. 23, No. 4, 2001, p. 397-404.

Research output: Contribution to journalArticle

Manabe, Y, Honda, E, Shiro, Y, Sakai, K, Kohira, I, Kashihara, K, Shohmori, T & Abe, K 2001, 'Fractal dimension analysis of static stabilometry in Parkinson's disease and spinocerebellar ataxia', Neurological Research, vol. 23, no. 4, pp. 397-404. https://doi.org/10.1179/016164101101198613
Manabe, Y. ; Honda, E. ; Shiro, Y. ; Sakai, K. ; Kohira, I. ; Kashihara, K. ; Shohmori, T. ; Abe, Koji. / Fractal dimension analysis of static stabilometry in Parkinson's disease and spinocerebellar ataxia. In: Neurological Research. 2001 ; Vol. 23, No. 4. pp. 397-404.
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