重心動揺の解析--重心動揺パタ-ンの定量化について

概要

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While few reports are available on the quantification of the pattern of the stabilogram, the objective classification of the pattern was attempted by Tokita in 1972, who recognized four patterns. We tried to quantify the pattern through a statistical approach in the present study.Analysis was done using the method of Wilks Λ. This consists in dividing a sequence of changes in the location of the center of gravity into successive groups of change in a certain unit time and comparing the mean change in the location among different time groups.As a result, the patterns of the stabilogram were quantitatively classified into three types, the fixed center, unfixed center and multiple center types. The Λ value at 12sec was 1.00-0.65 in the fixed center type, 0.65-0.35 in the unfixed center type, and 0.35-0.00 in the multiple center type. We then drew a graph from the unit time and Wilks Λ value, and named the curve thus obtained “Body sway pattern curve”.The multiple center type in the three patterns seems to have peculiar means that concern with the oculo-spinal reflex.
耳鼻咽喉科臨床学会の論文