Biomechanics of human pelvis in 3D perspective

本研究的目的是收集人类骨盆的基本形态测量数据，为人类进化的数值重建和生物力学分析奠定基础。在过去的15年里，从解剖室的尸体中制备了人类骨盆的骨标本。标本数量为119只，其中雄性62只，雌性57只。每具骨架都记录了死亡时的身高、性别和年龄。平均死亡年龄为65岁。形状数据通过三种方法得到。用滑动卡尺对每个骨盆进行19次线性测量。对数码照片的三个方面进行了照相测量。侧面是用来分析坐骨大切迹的。上侧面是骨盆入口的形态测量。前侧面是用来计算耻骨下角的。用Xyzax系统测量骨盆表面40个地标的三维坐标（x, y, z）。坐标数据的组合提供了17个几何属性。一些统计分析将揭示现代日本人口的形状变化、两性二态性、异速生长（缩放效应）和生物力学含义。

The purpose of this study was to collect the basic morphometric data for human bony pelves, which are prerequisite for numerical reconstruction and biomechanical analysis in terms of human evolution. Bony specimens of human pelves were prepared from dissecting room cadavers for the past 15 years. The number of specimens is 119, including 62 males and 57 females. Each skeleton is documented with stature, sex, and age at death. The average age at death is 65 years old. Shape data were derived by three methods. Nineteen linear measurements by sliding calipers were applied to each pelvis. Photographic measurement was used for 3 aspects of digital pictures. Lateral aspect is for analysis of the greater sciatic notch. Superior aspect is for morphometry of the pelvic inlet. Anterior aspect is for calculation of the subpubic angles. Three-dimensional coordinates (x, y, z) of 40 landmarks on the surface of pelvis were measured with Xyzax system. Combination of the coordinate data provided 17 geometric properties. Several statistical analyses would reveal shape variation, sexual dimorphism, allometry (scaling effect), and biomechanical implications in the modern Japanese population.