Stabilometric parameters analysis in children with visual disorder

Araujo, P. P.; Filho, Oséas Florêncio de Moura; Valenti, Vítor Engrácia; Gallo, Sarita Bonagurio; Camargo, Marcela Regina de; Say, Karina Gramany; Marcomini, Renata Sperancin; Oliveira, Gonçalves de; Monteiro, Carlos Bandeira de Mello; Wajnsztejn, Rubens; Abreu, Luíz Carlos de

doi:10.1186/1755-7682-7-1

Cited by 21 publications

(31 citation statements)

References 27 publications

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“…La estabilometría es una herramienta fundamental en la evaluación motora tanto en personas sanas[ 12,19,14,6] como en deportistas [22] y en personas con trastornos del sistema neuro-musculo-esquelético [5,7,23] . A pesar ser un método cuantitativo de valoración clínica, el diagnóstico y seguimiento de alteraciones del equilibrio continua siendo dependiente de la experiencia del especialista [16,17] .…”

Section: Discussionunclassified

“…En este artículo se muestran los resultados de un estudio piloto en sujetos sanos, orientado a identificar parámetros de normalidad que favorezcan el diagnós-tico adecuado, así como el tratamiento y seguimiento adecuado de algunas enfermedades relacionadas con el equilibrio [5,7,23] . Estudios recientes han proporcionado excelentes resultados en la evaluación de la estabilometría en pacientes con algún grado de afección del sistema propioceptivo y vestibular [4,24,25,26] , sin embargo no se han reportado estudios que identifiquen patrones normales y/o patológicos del equilibrio.…”

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“…Sus esfuerzos se enfocan fundamentalmente en el establecimiento de patrones de movimiento característicos de personas sanas y en la comparación de estas con las variaciones generadas por trastornos patológicos que comprometen el sistema osteo-muscular [1,2,3] . En ese sentido, es posible evaluar de forma más objetiva el estado y evolución de las patologías que afectan el sistema neuro-motor, siendo la alteración del equilibrio uno de los signos más comunes en la actualidad [4] , evaluado tradicionalmente mediante un estudio de estabilometría [5,6,7] . La estabilometría es el estudio del equilibrio que permite analizar el control postural y su relación con la estabilidad en una posición bípeda [8] .…”

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“…Algunos investigadores han reportado diferentes parámetros y metodologías para evaluar la estabilidad [13,5,7,14] . Entre ellos se destaca el estudio de Yasuhiro et al [15] , en el cual analizaron pacientes con Parkinson mediante un estudio de estabilometria en dimensión fractal, obteniendo factores importantes para caracterizar la enfermedad.…”

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Biomechanical reference standards for early diagnosis of disturbances of balance: pilot study

Portilla

Perdomo

Bucheli³

2017

Rev. Mex. Ing. Biomed.

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RESUMENLa inestabilidad de la postura y alteración del balance corporal son signos comúnmente observados en sujetos con afecciones que comprometen el sistema músculo-esquelético, visual, vestibular y propioceptivo, siendo la estabilometría la principal herramienta de valoración clínica. Sin embargo, no se ha podido establecer un gold standard o patrones cuantitativos que permitan clasificar sujetos sanos y patológicos basados en el grado de alteración del equilibrio. Objetivo: El objetivo principal de este estudio fue realizar un análisis estabilométrico preliminar con 38 sujetos sanos (19 mujeres y 19 hombres), con el fin de identificar un patrón de desplazamiento característico de la postura. Metodología: Este estudio se basó en la aplicación del test de Romberg. Se realizaron tres mediciones en cada paciente con ojos abiertos (OA) y ojos cerrados (OC), ubicados sobre una plataforma de fuerza en posición vertical. Resultado: se identificó un patrón característico de desplazamiento en los ejes medio-lateral X y antero-posterior Y, así como una estabilidad notable sobre el eje vertical Z, alrededor del centro de presión. Limitaciones:Sin embargo, debido al tamaño de la muestra, no se encontraron resultados concluyentes sobre las diferencias de índice de masa corporal, sexo o edad en el grupo de estudio. Originalidad: A pesar de ello, se encontraron paráme-tros prometedores para la evaluación de la estabilometría en personas jóvenes sanas, fortalenciendo con ellos las herramientas objetivas de valoración clínica. Conclusión: Esta investigación permitió identificar características de movimiento comunes para pacientes normales, que pueden ser consideradas como un patrón objetivo para el seguimiento y evaluación de tratamientos en pacientes con trastornos del equilibrio de origen patológico.

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Biomechanical reference standards for early diagnosis of disturbances of balance: pilot study

Portilla

Perdomo

Bucheli³

2017

Rev. Mex. Ing. Biomed.

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“…Blind individuals display continuous musculoskeletal deformities [18]. Other postural compensations found in blind people include flat feet (planovalgus feet) with fingers pointing outward and a wide base of support, hip and knee contracture, spinal kyphosis, shoulder anteversion, position of the head in anterior protrusion, and poor development of the lower limbs muscles [4,19].…”

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Gait adaptations after vestibular stimulation in children with congenital visual impairments: a comparative study

Tsaklis¹,

Zorzos²,

Mertyri³

2018

Hum Mov.

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Purpose. The study is based on the hypothesis that individuals with congenital total or partial loss of vision develop more effective gait adjustments compared with those who are sighted, after stimulation of the vestibular system. Therefore, they are able to manage their motor control better. The aim was to investigate the way individuals with congenital total or partial vision loss adjust their gait following vestibular stimulation, compared with sighted blindfolded individuals. Methods. The total of 10 children with congenital visual impairments constituted the experimental group and 10 children with normal vision (blindfolded with special mask) formed the control group. We performed gait analysis (forward and backward gait direction) with a three-dimensional gait analysis system. The walking speed (m/s) of each group, before and after the vestibular stimulation, during forward and backward gait, was analysed. Results. The average walking speed of the children in the experimental group, statistically, revealed no significant differences before and after the vestibular stimulation. conversely, in the control group, statistically significant differences in the mean walking speed before and after the vestibular system stimulation were found. Conclusions. children with congenital total or partial blindness may adapt their gait strategy more adequately, after vestibular stimulation, during forward and backward gait, as compared with sighted blindfolded children. consequently, the first group is in the position to manage their motor control more sufficiently.

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Postural stability in people with visual impairment

2019

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BackgroundThe visual system enables the brain to assess information regarding the position of the body in space. Congenital or acquired blindness leads to the development of abnormal sensory‐motor interactions that results in development of typical musculoskeletal deformities and gait patterns that cause disability. Diabetes and related complications are expected to increase exponentially in the next 10 years; thus, the number of people with visual impairment is expected to increase. However, there have been few studies regarding etio‐pathogenesis of postural alteration and balance impairment in people with visual impairment; moreover, no previous study has investigated postural stability in this population. This study aimed to assess the center of gravity (COG) velocity in subjects with visual impairment and compared with that in sighted subjects.MethodsSeventy male subjects, 20–40 years of age, participated in this study; they were divided into sighted (control) and visually impaired groups. COG velocity while standing on an unstable surface was measured using the NeuroCom® Balance Master Version 8.5.0. For the sighted group, data were recorded with eyes open and then with eyes closed. For the visually impaired group, no instructions were given with respect to eyes during data collection.ResultsMean COG velocity was significantly higher in the visually impaired group than in the sighted group with eyes open. However, there was no difference in mean COG velocity between the visually impaired group and the sighted group with eyes closed. The difference in mean COG velocity between sighted subjects with eyes open and eyes closed was also significant. Mean COG velocity while standing on a foam surface varied among visually impaired subjects and sighted subjects with eyes open and closed.ConclusionThis study showed that subjects with visual impairment, regardless of eye opening or closure, behave in the same manner as sighted subjects with eyes closed.

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Stabilometric parameters analysis in children with visual disorder

Cited by 21 publications

References 27 publications

Biomechanical reference standards for early diagnosis of disturbances of balance: pilot study

Biomechanical reference standards for early diagnosis of disturbances of balance: pilot study

Gait adaptations after vestibular stimulation in children with congenital visual impairments: a comparative study

Postural stability in people with visual impairment

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