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首页> 外文期刊>Journal of bodywork and movement therapies >The effect of time restricted visual sensory input on asymmetry of ground reaction force components in female children
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The effect of time restricted visual sensory input on asymmetry of ground reaction force components in female children

机译：时间限制视觉感应输入对女性儿童地面反应力分量不对称的影响

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The association between visual sensory and the asymmetry index of sit-to-stand ground reaction force characteristics is not fully understood. Therefore, the purpose of this study was to investigate asymmetry index of sit-to-stand ground reaction forces, their times–to-peak, vertical loading rate, impulses, and free moment in blind and sighted children. 15 female children with congenital blindness and 30 healthy girls with no visual impairments volunteered to participate in this study. The girls with congenital blindness were placed in one group and the girls with no visual impairments were randomly divided into two groups of 15. The two condition groups consisted of, one eyes open and the other, eyes closed. The participants in the eyes closed group were asked to close their eyes for 20?min before the test, whereas those in the eyes open group kept their eyes open. Kinematic and kinetic data were collected using an eight-camera motion analysis system synchronized with two force plates embedded in the floor. A MANOVA test was run for between-group comparisons. There were no distinctive biomechanical alternations in all axes of ground reaction forces and their times-to-peak, vertical loading rate, impulses and free moments in congenital blindness and eyes closed groups compared with the eyes open group. However, eyes closed was associated with increased total time and second phase duration of sit-to-stand performance by 69% (p?=?0.008) and 62% (p?=?0.008), respectively. These findings reveal that individuals who are visually restricted in the short term, do not develop stereotypical movement strategies for sit-to-stand.
机译：不完全理解视觉感觉与静止地面反作用力特性的不对称指数之间的关联。因此，本研究的目的是调查盲人和观察儿童的静止地面反作用力的不对称指数，其时分至垂直的升降率，脉冲和自由时刻。 15名女性儿童具有先天性失明和30名健康女孩，没有视觉障碍自愿参加这项研究。先天性失明的女孩们被置于一个组，没有视力障碍的女孩随机分为两组15。两个条件组包括一个眼睛，另一个眼睛闭着眼睛。闭着眼睛的参与者被要求在考试前闭上眼睛20？分钟，而那些在眼睛中的人睁开眼睛。使用与嵌入在地板中的两个力板同步的八相运动分析系统收集了运动和动力学数据。为组间比较运行Manova测试。与眼睛开放组相比，在先天性失明和眼睛闭合群中，在地面反作用力的所有轴上和它们的时分至峰值，垂直装载速率，脉冲和自由时刻没有明显的生物力学交替。然而，闭孔与分别增加的总时间和第二阶段持续时间增加了69％（p？= 0.008）和62％（P？= 0.008）。这些调查结果表明，在短期内视觉限制的个人不开发静坐的陈规定型运动策略。

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