Physical Meaning on Geometrical Index for Stabilometry
Physical Meaning on Geometrical Index for Stabilometry
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稳定性几何指标的物理意义
DOI：
10.3757/jser.62.168
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发表时间：
2003
影响因子：
--
通讯作者：
M. Miyao
中科院分区：
文献类型：
--
作者：
H. Takada;Y. Kitaoka;Masumi Ichikawa;M. Miyao
在这篇文章中，我们发展了一种稳定测量的分析指标来诊断控制前庭脊髓反射的小脑平衡功能的下降。我们用稳定器测量了7名年龄在19到26岁的健康男性的身体重心摆动，并记录了饮酒后的状态图。我们建议将这些统计运动图分为两组，即摄取前和摄取后的统计运动图。Suzuki et al.(1996)关于稳定度测量的标准化指标，如摆动面积、总轨迹长度等，但很难用这些指标对状态图进行分类。在这里，我们引入了一个新的指标，稀疏密度，以稳定计量。我们证明了稀疏密度是一个有用且稳定的非参数统计量分类指标。虽然我们预计酒精负荷对循环系统的影响类似，但从时间的角度来看，这些指标的变化比器官恢复的变化要复杂得多。我们还通过关注作用在数据上的力来分析数据，这些力产生了统计运动图。我们特别将注意力转向奇点，在那里施加的力量在统计学上是微小的或巨大的。我们可以用作用在重心上的局部力之和来追求稀疏密度。我们得出结论，稀疏密度取决于控制物体重心的函数。
In this paper, we report our development of an analytical index on stabilometry to diagnose a decrease in the cerebellar equilibrium function controlling vestibulo-spinal reflex. We measured the sway of the center-of-gravity of the body with a stabilometer for seven healthy men aged 19 to 26 years, and also recorded statokinesigrams after alcoholic intake. We propose classification of these statokinesigrams under two groups, statokinesigrams before the intake and after it. Suzuki et al. (1996) standardized indices, area of sway, total locus length and other parameters, on stabilometry, however, it was difficult to classify statokinesigrams with those indices. Here, we introduce a new index, sparse density, into stabilometry. We show that sparse density is a useful and stable index for classification in accordance with non-parametric statistics. Although we expected a similar effect on the circulatory system by the alcoholic load, variation of these indices was more complex than the variation derived from the organs for the recovery from the standpoint of time. We also analyzed data by paying attention to the force acting on them, which generated the statokinesigrams. We especially turned our attention to singular points where statistically tiny or huge forces are exerted. We could pursue the sparse density with sum of local force that acted on the center-of-gravity. We concluded that sparse density depends upon the function for the control of the center-of-gravity of the body.