Microevolutionary changes in the skeleton of the foot of Japanese: Special reference to the medial longitudinal arch |
| |
Authors: | K. Funakoshi |
| |
Affiliation: | (1) Department of Anatomy, Faculty of Medicine, Kyushu University, 812 Fukuoka, Japan |
| |
Abstract: | This study concerns secular changes of the foot of Japanese, from the prehistoric Jomon period to early modern times. The size of the talus, calcaneus and first metatarsal changed in parallel with the estimated stature, during this period. In the case of the calcanues, length-height-index, length-tuberosity height-index, Böhler's tuber-joint angle and angle of cuboidal articular surface gradually increased with time. Thus, all may take part in elevation of the longitudinal arch. With time, the relative height of the subtalar, talonavicular, cuneonavicular and first tarsometatarsal joints in the reconstructed medial arch enlarged, in parallel with the increase in the inclination angles of both the calcaneus and the first metatarsal. In addition, valgus deviation of the distal phalanx of the great toe became conspicuous in comparatively recent times. These changes no doubt were accelerated by modification in life style. |
| |
Keywords: | foot skeleton arch microevolutionary change |
本文献已被 SpringerLink 等数据库收录! |
|