Your browser doesn't support javascript.
loading
Characteristics of temporal fluctuation of the vertical ground reaction force during quiet stance in Parkinson's disease.
Minamisawa, Tadayoshi; Sawahata, Hirohito; Takakura, Kei; Yamaguchi, Takashi.
Afiliación
  • Minamisawa T; Yamagata Prefectural University of Health Sciences, 260 Kamiyanagi, Yamagata, Yamagata 990-2212, Japan. tminamisawa@yachts.ac.jp
Gait Posture ; 35(2): 308-11, 2012 Feb.
Article en En | MEDLINE | ID: mdl-22019384
ABSTRACT
Stance instability is seen in late stage Parkinson's disease (PD). Stabilometer-based center-of-pressure (COP) evaluation is an easy, routine method for measuring postural control ability. Most of the stabilometer- and force plate-based studies on upright postural control have discussed horizontal COP component control. Previous studies on vertical component control have been few, and no fractal analysis-based study on the component has been reported. We aimed to show the influence of neurological changes and aging on the vertical component and the difference in fluctuation pattern behavior in healthy young and elderly subjects as well as Parkinsonian patients. Detrended fluctuation analysis was used to study characteristics of fluctuation of vertical ground reaction force. In the three groups, all scaling exponents (α, α1, α2), which are time-correlated data of vertical ground reaction force, had a value >0 and <0.5 (0<α<0.5). Additionally, α and α2 were significantly different between PD and the other groups. Significant differences were observed between PD and the other groups regarding RMS, maximum peak value, and coefficient of variance. We demonstrated statistically significant differences in vertical ground reaction force between Parkinsonian patients and the other groups, suggesting that a neurological influence with PD may be markedly reflected in the vertical ground reaction force.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedad de Parkinson / Envejecimiento / Trastornos Neurológicos de la Marcha / Equilibrio Postural / Prueba de Esfuerzo / Marcha Tipo de estudio: Etiology_studies / Observational_studies / Risk_factors_studies Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Gait Posture Asunto de la revista: ORTOPEDIA Año: 2012 Tipo del documento: Article País de afiliación: Japón

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedad de Parkinson / Envejecimiento / Trastornos Neurológicos de la Marcha / Equilibrio Postural / Prueba de Esfuerzo / Marcha Tipo de estudio: Etiology_studies / Observational_studies / Risk_factors_studies Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Gait Posture Asunto de la revista: ORTOPEDIA Año: 2012 Tipo del documento: Article País de afiliación: Japón