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标题：The effects of various visual conditions on the gait cycle in children with different level of motor coordination-a pilot study. [Cómo afectan diferentes condiciones visuales a la marcha en niños con diferente nivel de coordinación motriz- un studio piloto].
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作者：Miriam Palomo-Nieto ; Rudolf Psotta ; Adrian Agricola 等
期刊名称：RICYDE. Revista Internacional de Ciencias del Deporte. doi:10.5232/ricyde
印刷版ISSN：1885-3137
出版年度：2015
卷号：11
期号：42
页码：387-399
语种：English
出版社：Ramón Cantó Alcaraz (Publisher)
摘要：The importance of vision and the visual control of movement have been addressed in the literature related to motor control. Many studies have demonstrated that children with low motor competence in comparison to their typically developing peers may rely more heavily on vision to perform movements. The aim of the study was to highlight the effects of different visual conditions on motor performance during walking in children with different levels of motor coordination. Participants (n=8, Mean age = 8.5±.5 years) were divided into typical development (TD) and low motor coordination (LMC) group. They were asked to walk along a 10-meter walkway provided by Optojump-Next instrument that was placed in a portable construction (15 x 3 x 2.5m). This construction was surrounded by dark blue fibers in which all participants perceived the same visual information. They walked in a self-selected speed under four visual conditions: full vision (FV), limited vision 150 ms (LV-150), limited vision 100 ms (LV-100) and non-vision (NV). For visual occlusion during walking in LV-150 and LV-100, participants were equipped with Plato Goggles that opened for 150 and 100 ms, respectively, within each 2 sec. Data were analyzed in a two-way mixed between-within ANOVA including 2 (groups: TD vs. LMC) x 4 (visual condition: FV, LV-150, LV-100 & NV) with repeated-measures on the last factor (p≤.05). Results indicated that TD children walked faster and with longer strides than LMC children in which these parameters can influence on different periods of gait cycle including stance and swing phases. Also, perceiving visual information for 150 ms in comparison to 100 ms while walking was enough for similar performance in FV condition. The present findings highlight underlying parameters of gait cycle for walking in TD compared to LMC children are different.ResumenLa importancia de la visión y del control visual en el movimiento es un asunto ampliamente abordado y tratado en la literatura científica referida al control motor. Muchos estudios han demostrado que los niños con un bajo nivel de competencia motriz dependen en mayor medida de la visión para realizar diferentes movimientos respecto de sus iguales. El objetivo de este estudio fue destacar el efecto que diferentes condiciones visuales tenían en el rendimiento motor durante la marcha en niños con diferente nivel de coordinación motriz. Los participantes (n = 8, Ma = 8.5 años sd. ± 0.5) fueron divididos en dos grupos: desarrollo motor típico (TD) y coordinación motora baja (LMC). Los participantes debían andar dentro de un laboratorio portátil (15 x 3 x 2.5m), a lo largo de un pasillo de 10 metros donde se instaló el instrumento Optojump-Next. Dicha construcción, rodeada de una tela óscura, permitía que todos los participantes tuvieran la misma información visual durante el experimento. Los participantes anduvieron a la velocidad que deseaban bajo cuatro condiciones visuales distintas: visión completa (FV), visión reducida 150 ms (LV-150), visión reducida 100 ms (LV-100) y no visión (NV). Para la visión reducida (LV-150 y LV-100), los participantes vestían unas gafas de oclusion que se cerraban a los 100 y 150 ms respectivamente, cada dos segundos. Los resultados fueron analizados siguiendo un análisis doble de la varianza (ANOVA) que incluía 2 (grupos: TD vs. LMC) x 4 (condiciones visuals: FV, LV-150, LV-100 & NV) con medidas repetidas en el último factor (p ≤.05). Los resultados de este estudio indicaron que los niños del grupo TD andaban más rápido y con zancadas más largas que los niños del grupo LMC en cuyo grupo, estos parámetros pueden influir en diferentes fases del ciclo de la marcha. Asimismo, percibir información visual durante la marcha en 150 ms. en comparación con 100 ms. fue suficiente para un rendimiento similar bajo la condición de FV. Los descubrimientos de este estudio ponen de manifiesto que bajo los parámetros de la marcha son diferentes al comparar niños con TD niños LMC . http://dx.doi.org/10.5232/ricyde2015.04207-----------------------------------------------------------------------------------------References/referenciasAmerican Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders 5th ed. (DSM-5TM). Washington, DC: American Psychiatric Press.Arnold, E., Ward, S., Lieber, R., & Delp, S. (2010). A model of the lower limb for analysis of human movement. Annals of Biomedical Engineering, 38, 269–279. http://dx.doi.org/10.1007/s10439-009-9852-5Ayres, J.A. (1972). Sensory integration and learning disorders. Los Angeles, CA: Western Psychological Services.Barnett, A., & Henderson, S.E. (2005). 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关键词：visual information; motor performance; walking pattern; optojump; información visual; rendimiento motor; patrón de la marcha.