Posturography does not Test Vestibulospinal Function

Evans, Mary; Krebs, David E.

doi:10.1016/s0194-5998(99)70401-8

Cited by 52 publications

(24 citation statements)

References 20 publications

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“…Evans and Krebs [26] come to the conclusion that, although SOT results correlate moderately with the standard vestibuloocular tests, they show only a weak correlation with the authors' kinematic tests on dynamic stability under conditions of movement. They conclude that CDP is unsuitable for testing vestibulospinal function.…”

Section: Discussionmentioning

confidence: 91%

Influencing Factors on the Vestibular Function of Deaf Children and Adolescents - Evaluation by Means of Dynamic Posturography

Schwab

Kontorinis²

2011

TOOTORJ

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Abstract:Objectives: Previous studies have shown that both motor exercises and vestibuloocular tests reveal a difference in the balance function of deaf and normal-hearing children and adolescents.The purpose is to evaluate the influence on balance function of the hearing status. Material and Methods:A total of 80 children and adolescents between the ages of 4 and 20 years were studied. Of these, 40 children were either deaf or severely hearing impaired. The remaining 40 were control subjects of equivalent age without hearing or balance impairment.The EquiTest ® , a device used in computerized dynamic posturography, was employed for the investigations. Mean equilibrium and latency scores from both groups were compared using t-tests for unrelated random samples. Results:The deaf children achieved significantly lower equilibrium scores and latency scores than the control group. A positive linear relationship exists between the age of the subjects and the equilibrium scores obtained. Gender, extent of hearing loss and cause of deafness have no significant effect on the balance function of the deaf children. Deaf subjects with normal caloric excitability achieved significantly higher equilibrium scores than those with vestibular deficits. Conclusions:The results support the hypothesis that damage to the cochlea, whatever its cause, may also detrimentally affect the vestibular organ. They do not, however, exclude the possibility that the poorer balance proficiency shown by deaf children may have other possible causes, such as CNS damage.The fact that equilibrium scores increase with increasing age can be seen as indicating the maturation of central nervous mechanisms involved in integrating the various sensory qualities in the sense of balance.An improvement in vestibular function through special training appears plausible, although this would necessitate diagnosis at a very early stage.

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Section: Discussionmentioning

confidence: 91%

Influencing Factors on the Vestibular Function of Deaf Children and Adolescents - Evaluation by Means of Dynamic Posturography

Schwab

Kontorinis²

2011

TOOTORJ

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“…Among the 10 fall cases in this group, 3 cases happened to have abnormally increased SVs during the first (or second) assessment, but happened to fall during the second (or first) test. The reason was that when people were statically standing, the feet and the ground were in contact and formed a base of support for upright standing [1,24]. When the body retains its balance, it will try to keep static, but as a matter of fact, the center of gravity will keep the sway around the balance point.…”

Section: Discussionmentioning

confidence: 99%

Reliability of foam posturography in assessment of postural balance in the patients with vertigo

Liu

Kong

2008

Front. Med. China

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The postural balance is a important aspect of assessment in vestibular rehabilitation therapy. As the computerized dynamic posturography, the foam posturography performed by using foam in posturography is a useful measurement tool for postural balance. Then, the reliability of foam posturography is critical in clinic. To our knowledge, there is no report about the test-retest reliability of foam posturography in the patients with vertigo in China. The foam posturography was taken on the patients with vertigo in stable state and repeated in 3 to 5 days. In the two assessments of test and retest, all subjects stood under 4 sensory conditions, such as firm surface with eyes open (T1), firm surface with eyes closed (T2), foam surface with eyes open (T3) and foam surface with eyes closed (T4) for 30 seconds respectively. The average sway velocity (SV) of center of pressure (COP) under feet of upright standing was recorded as research parameter. The results of patients with vertigo were compared with those of normal subjects. It demonstrated that all normal subjects did not fall in the two assessments. There were 10 of 34 patients with vertigo at least fell one time during the two assessments, and the SVs of these subjects did not taken the analysis of test-retest reliability. The results showed that: (1) The interclass correlation coefficients (ICC) of all 49 subjects including normal subjects and patients without falling were 0.887-0.973 according to the T1-T4 between two assessment. (2) The SVs between the normal subjects and patients were significantly different in the T2 (t 5 2.018, P 5 0.049) and T4 (t 5 3.905, P , 0.001) in the first assessment and in the T4 (t 5 3.715, P 5 0.001) in the second. And (3) the cases of falling between two assessments were not significant different (x 2 5 0.073, P 5 0.787) in the patients with vertigo. It is concluded from this study that the foam posturography has high test-retest reliability to assess the postural balance in the patients with vertigo in stable state, indicating the foam posturography can be used as the valid means to assess the improvement of postural balance for patients with vertigo in the vestibular rehabilitation therapy.

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“…El estabilómetro o posturógrafo computarizado más nombrado en la literatura internacional es el SMART Balance Master, desarrollado por NeuroCom International Inc, Clackamas, OR, USA (18,19,20,21,22). Esta herramienta provee información acerca de los tres sistemas sensoriales que contribuyen en el control postural: somatosensorial*, visual y vestibular, mediante la cuantificación del centro de gravedad y el centro de presión plantar en relación con la base de soporte utilizada, siguiendo el protocolo de evaluación "Sensory Organization Test (SOT)" (3,18,19,20,21,22).…”

Section: Introductionunclassified

“…Esta herramienta provee información acerca de los tres sistemas sensoriales que contribuyen en el control postural: somatosensorial*, visual y vestibular, mediante la cuantificación del centro de gravedad y el centro de presión plantar en relación con la base de soporte utilizada, siguiendo el protocolo de evaluación "Sensory Organization Test (SOT)" (3,18,19,20,21,22). lancearse de manera voluntaria en ocho localizaciones predefinidas en el espacio.…”

Section: Introductionunclassified

Modelo Matemático Para Calcular El Centro De Presión Plantar Sobre Una Superficie Dinámica

Sandoval

2017

Rev. Colomb. Rehabil.

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El balance postural es la capacidad para mantener los segmentos corporales ante la acción de la fuerza de gravedad. Es una cualidad compleja del movimiento corporal, la cual depende de la interacción de los sistemas visual, vestibular y propioceptivo. Una descripción cuantitativa del balance postural se realiza mediante el cálculo del centro de presión plantar,considerado como el punto en el cual se concentra el promedio de todas las presiones ejercidas por el cuerpo sobre una superficie. Los estudios se han centrado en el análisis del balance postural bajo una superficie estática, sin embargo, las diversas praxias motoras del ser humano, como la marcha, la práctica lúdica y deportiva, la carrera y el mantenimiento de la postura exigen conservar el equilibrio ante terrenos inestables. Por ello, el objetivo del siguiente trabajo de investigación consistió en proponer un modelo matemático para calcular el centro de presión plantar, las fuerzas de reacción y los momentos articulares en dos dimensiones bajo una superficie inestable como indicadores de la estabilidad postural. Se fundamentó en elementos de la mecánica clásica como la condición de equilibrio estático y la condición de momento inicial para el cálculo del centro de presión plantar, las fuerzas de reacción y los momentos articulares. Los resultados mostraron las ecuaciones para el cálculo el centro de presión plantar, las fuerzas de reacción y los momentos en dos dimensiones. En conclusión, este trabajo es la base para el desarrollo de trabajos futuros como la construcción de un estabilómetro y la evaluación de tratamientos relacionados con la optimización del balance.

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Posturography does not Test Vestibulospinal Function

Cited by 52 publications

References 20 publications

Influencing Factors on the Vestibular Function of Deaf Children and Adolescents - Evaluation by Means of Dynamic Posturography

Influencing Factors on the Vestibular Function of Deaf Children and Adolescents - Evaluation by Means of Dynamic Posturography

Reliability of foam posturography in assessment of postural balance in the patients with vertigo

Modelo Matemático Para Calcular El Centro De Presión Plantar Sobre Una Superficie Dinámica

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