Camicioli R, Panzer V P, Kaye J
Department of Neurology, Veterans Affairs Medical Center and Oregon Health Sciences University, Portland 97201-3098, USA.
Arch Neurol. 1997 Aug;54(8):976-81. doi: 10.1001/archneur.1997.00550200040008.
To measure balance changes in the healthy elderly using quantitative dynamic posturography. To relate these changes to clinical measures of balance and gait.
Elderly subjects screened for health criteria in a longitudinal study were examined using standardized cognitive, neurological, and performance-based tests. Quantitative posturography (Equitest, Neurocom International, Clackamas, Ore) was performed to determine the subject's response to sensory (Sensory Organization Test) and motor perturbations (Motor Coordination Test).
Thirty-three healthy, old old subjects (> or =80 years; mean+/-SD age, 88+/-5 years) were compared with 15 subjects younger than 80 years (mean+/-SD age, 72+/-3 years). All were free of centrally active medications.
The old old had worse quantitative equilibrium scores compared with subjects younger that 80 years when proprioceptive input was inaccurate and visual input was either preserved or completely absent. Old old subjects showed diminished adaptation to repeated platform rotations and fell more frequently during posturography. Quantitative balance measures correlated with age and functional measures of balance (Tinetti Balance Scale score, timed 1 leg standing).
Progressive, functionally evident, age-related quantitative balance changes occur independent of typical geriatric pathological changes. These data should facilitate clinical decisions by allowing the distinction to be made between age-related and pathological changes.
使用定量动态姿势描记法测量健康老年人的平衡变化。将这些变化与平衡和步态的临床测量指标相关联。
在一项纵向研究中，对符合健康标准的老年受试者进行标准化认知、神经学和基于表现的测试。进行定量姿势描记法（Equitest，Neurocom International，俄勒冈州克拉卡马斯）以确定受试者对感觉（感觉组织测试）和运动扰动（运动协调测试）的反应。
33名健康的高龄受试者（≥80岁；平均±标准差年龄，88±5岁）与15名80岁以下的受试者（平均±标准差年龄，72±3岁）进行比较。所有受试者均未服用中枢活性药物。
当本体感觉输入不准确且视觉输入保留或完全缺失时，高龄受试者的定量平衡得分比80岁以下的受试者差。高龄受试者对重复的平台旋转的适应性降低，并且在姿势描记法期间跌倒更频繁。定量平衡测量指标与年龄以及平衡功能测量指标（Tinetti平衡量表得分、单腿定时站立）相关。
与年龄相关的渐进性、功能上明显的定量平衡变化独立于典型的老年病理变化而发生。这些数据应有助于临床决策，通过区分年龄相关变化和病理变化来实现。
