Allometry of the Foot and the Shoe Last.

概要

論文の詳細を見る
Twenty measurements of the right foot were obtained from 528 adult male and 500 adult female Japanese. The measurements were analyzed to clarify the differences in foot proportions correlated with changes in foot length and circumference. Twenty-four shoe lasts of different lengths and circumferences were measured and analyzed to explain the shape changes caused by the grading. To investigate the appropriateness of the current grading method, the allometric changes in the foot were compared with the changes in the last caused by the grading. For the foot measurements, it was found that length measurements showed isometry, but breadth, height and circumference measurements indicated negative allometry to foot length (i.e., longer feet were more slender). At a given foot length, the increase of foot circumference resulted in wider ball breadth compared to heel breadth. There were discrepancies found between the shape differences of the lasts related to grading, and those in the foot related to the foot size. These discrepancies may result in a misfit of a shoe near the end of the size distribution. Possible factors influencing the allometry of the foot, and procedures to solve the problems in grading method and production technology of the shoe lasts are discussed.
日本人類学会の論文