光弾性手法を用いた足圧分布測定法の医学への応用 : ダウン症候群児立位時の足の力学特性の解析

概要

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A photoelastic method was used for a new device to measure contact pressure distribution between soles and the floor surface. The size of a first fringe was linearly correlated with weight loaded upon the point. Its error ranges were within 3%. When 17 individuals with Down syndrome (ages 1-15 years) and 27 controls (ages 1-50 years) were analysed by this method, it was revealed that, in the former, the number of points with a first fringe was increased and, in the latter, an average loading weight for each point with a first fringe was increased. From the patterns of contact pressure distribution of soles, the center of gravity for each sole and that of a whole body were determined. In the Down syndrome group, the position was shifted forward at 50% the length of the sole from the ankle; meanwhile, it was only 35% in the control.
社団法人日本機械学会の論文
1990-09-25