ABSTRACT
Resumen Introducción: La posturografía es un método de exploración complementario para valorar el grado de desplazamiento del centro de gravedad (COP); no debe usarse de forma aislada al evaluar equilibrio, pero se acepta para seguimiento de la respuesta a tratamiento. Es de baja disponibilidad, por su alto costo comercial. Como alternativa se documenta la plataforma Wii Balance Board (WBB) de Nintendo para registro posturográfico. Objetivo: Describir valores de normalidad en parámetros posturográficos en población chilena sin patología vestibular, usando un registro simple y accesible. Material y Método: Estudio transversal de valores referenciales en herramienta para evaluación del equilibrio. Se registraron valores posturográficos con versión adaptada del Sensory Organization Test (SOT) a adultos sanos. Mediciones con software WBB Sway Program mediante WBB. Se midieron índices somatosensorial, visual y vestibular, y patrones de control postural en ejes anteroposterior y mediolateral durante SOT-adaptado. Resultados: Se obtuvieron valores de velocidad de desplazamiento del COP, área del COP y desviaciones estándar correspondientes para 4 situaciones del SOT-adaptado de 35 sujetos entre 18-65 años, 21 mujeres, 14 hombres. Discusión: WBB permitió evaluar estos parámetros en población sana, como aproximación a determinar rangos de referencia. Esta herramienta de uso rápido y accesible constituye una alternativa útil para determinar patrones de control postural en sujetos sanos. Presentamos valores a utilizar como rango referencial en nuestra población; se sugiere utilizar estos valores como objetivo terapéutico en rehabilitación vestibular en pacientes evaluados en conjunto con otros parámetros clínico-sintomáticos.
Abstract Introduction: Posturography is a complementary method for evaluating the center of pressure (COP) displacement; it should not be used in isolation when assessing balance, but it is accepted for follow-up of the treatment response. Due to its high commercial cost and low availability, we documented the Nintendo Wii Balance Board (WBB) as an alternative for posturography. Aim: To describe the normal range of posturography parameters in the Chilean population without vestibular pathology, using a simple and accessible registry method. Material and Method: Cross-sectional study of referential values in a balance assessment tool. Posturography values were registered using an adapted version of the Sensory Organization Test (SOT) on healthy adults. Measurements with WBB Sway Program software through WBB. With adapted-SOT, somatosensory, visual and vestibular indices, as well as anterior/posterior and mediolateral axes postural control patterns, were measured. Results: Values of displacement velocity of the COP, COP area and corresponding standard deviations were obtained for 4 SOT-adapted situations from 35 subjects between 18-65 years, 21 women, 14 men. Discussion: As an approach to determine referential range values, WBB allowed to evaluate these parameters in healthy population. To determine healthy subjects postural control patterns this quick and accessible tool is a useful alternative. We present referential range values to use in our population; it is suggested to use these values as therapeutic objectives in vestibular rehabilitation in patients evaluated along with other clinical-symptomatic parameters.
ABSTRACT
@#Introduction: The Wii Balance Board (WBB) is a commonly used tool for balance assessment, however the inconsistency in the reported validity for the WBB when used for the assessment of healthy young adults needs to be clarified. Aim: To investigate the concurrent validity and reliability of the WBB for balance assessment in healthy young adults. Methods: Thirty-two young adults participated in this study. Their ability to balance was tested while standing on a WBB and a laboratory-grade force platform, under three conditions: feet together with eyes open, feet together with eyes closed and semi-tandem standing with eyes open. They had 10 min resting period between tests. The agreement between the WBB and the laboratory-grade force platform was investigated, and the reliability of the WBB was determined. Results: A poor agreement between the WBB and the laboratory-grade force platform was found for all standing conditions [intraclass correlation coefficient (ICC) = 0.03 to 0.07]. A moderate to high reliability was found for the WBB for balance assessment in healthy young adults (ICC = 0.66 to 0.76). Conclusion: The WBB was found to be a reliable tool for static balance assessment in healthy young adults. However, it had poor validity compared to the laboratory-grade force platform.
ABSTRACT
Ageing is associated with changes in body balance mechanism. The gold standard assessment for body balance is posturography. However, because of the high cost constraints, not many health centers are equipped with the equipment. Nintendo Wii balance board (WBB) has been reported as a potential tool to be used to assess body balance and sway. Also, because WBB is more economical and portable, it has greater potential to be used in primary health centers and community settings. The objective of this study was to compare balance measures using BRU™ and WBB among young and older healthy adults during quiet standing. Thirty three young (26.9±5.6 years) and 33 older adults (65.6±4.4 years) were randomly tested on both equipments. Subjects performed 30sec trial for each of the four testing conditions: quiet standing on a firm or compliant surface (foam) with eyes-open and closed. The results showed significant differences in balance measurements between all four testing conditions and age groups using both equipments.This study also found significant positive correlations between the COPand sway velocity, SV (of the BRU™) and COB (of the WBB) in all test conditions. These results indicated that WBB coupled with its commercially available software could potentially be used as a screening tool for balance assessment in primary health centres.
ABSTRACT
@#Ageing is associated with changes in body balance mechanism. The gold standard assessment for body balance is posturography. However, because of the high cost constraints, not many health centers are equipped with the equipment. Nintendo Wii balance board (WBB) has been reported as a potential tool to be used to assess body balance and sway. Also, because WBB is more economical and portable, it has greater potential to be used in primary health centers and community settings. The objective of this study was to compare balance measures using BRU™ and WBB among young and older healthy adults during quiet standing. Thirty three young (26.9±5.6 years) and 33 older adults (65.6±4.4 years) were randomly tested on both equipments. Subjects performed 30sec trial for each of the four testing conditions: quiet standing on a firm or compliant surface (foam) with eyes-open and closed. The results showed significant differences in balance measurements between all four testing conditions and age groups using both equipments.This study also found significant positive correlations between the COPand sway velocity, SV (of the BRU™) and COB (of the WBB) in all test conditions. These results indicated that WBB coupled with its commercially available software could potentially be used as a screening tool for balance assessment in primary health centres.