THE WATERLOO VISION AND MOBILITY STUDY - POSTURAL CONTROL STRATEGIES IN SUBJECTS WITH ARM
THE WATERLOO VISION AND MOBILITY STUDY - POSTURAL CONTROL STRATEGIES IN SUBJECTS WITH ARM
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DOI：
10.1016/0275-5408(95)00025-9
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发表时间：
1995-11-01
影响因子：
2.9
通讯作者：
BROWN, S
中科院分区：
文献类型：
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作者：
ELLIOTT, DB;PATLA, AE;BROWN, S
对16名年龄相关性黄斑病变（ARM）患者（平均年龄73.9 +/- 7.4岁）和19名对照组（平均年龄69.1 +/- 5.5岁）的双眼视觉功能和站立平衡控制进行了评估。利用力板数据的压力信号中心来评估平衡控制。使用振幅的均方根误差（RMS）对其进行量化，采样时间为1分钟。这是在正常站立时评估的，同时来自动觉和/或视觉系统的输入被中断。两被试组各条件的RMS值差异有统计学意义（P < 0.005）。只有当运动感觉系统的输入中断时，ARM组和对照组之间的RMS差异才显着。我们的研究结果表明，在正常站立状态下，动觉系统和前庭系统补偿了ARM受试者视觉系统中缺乏的有用信息。当动觉系统输入中断时，ARM组的平衡控制明显差于对照组。姿势控制与对比敏感度之间的相关性较弱。本文提出了预防老年低视力患者跌倒的各种策略。
Binocular visual function and standing balance control was assessed in 16 subjects with age-related maculopathy (ARM) (mean age 73.9 +/- 7.4 years) and 19 controls (mean age 69.1 +/- 5.5 years). Balance control was assessed using the center of pressure signal from force plate data. It was quantified using the root mean square (RMS) error of the amplitude, sampled over a 1 min period. This was evaluated during normal standing, and while the input from the kinesthetic and/or visual systems were disrupted. The two subject groups showed significantly different RMS values across conditions (P < 0.005). The differences in RMS between ARM and control groups were only significant when the input to the kinesthetic sensory system was disrupted. Our results suggest that in the normal standing condition, the kinesthetic and vestibular systems compensated for the lack of useful information from the visual system in ARM subjects. When kinesthetic system input was disrupted, balance control of the ARM group was significantly poorer than the control. There was a weak correlation between postural control and contrast sensitivity. Various strategies for preventing falls in elderly patients with low vision are suggested.