Technical note: A volumetric method for measuring the longitudinal arch of human tracks and feet
Technical note: A volumetric method for measuring the longitudinal arch of human tracks and feet
复制标题
DOI：
10.1002/ajpa.24897
复制
发表时间：
2024-01-03
期刊：
影响因子：
--
通讯作者：
Falkingham，Peter L.
中科院分区：
文献类型：
--
作者：
Hatala，Kevin G.;Gatesy，Stephen M.;Falkingham，Peter L.
化石足迹（即足迹）被认为记录了足弓解剖学的演变，尽管我们最近的工作表明足迹足弓记录的是足部运动学。因此，尽管量化轨道形态的 3D 方面很困难，但对轨道拱门的分析可以了解人类运动的演变。在这里，我们提出了一种使用 Autodesk Maya 和 Blender 软件测量人类足迹和脚部 3D 模型的足弓的体积方法。该方法涉及生成代表纵拱下方空间的 3D 对象，并测量该拱形对象的几何形状和空间方向。我们为用户提供相关工具和指导，以将该技术应用于自己的数据。我们提出三个案例研究来展示潜在的应用。这些包括：(1) 测量静态和动态人类足弓，(2) 将人类足迹的足弓与形成它们的足弓进行比较，以及 (3) 在整个模拟足迹形成过程中直接比较人类足迹和足弓形态。事实证明，体积测量工具对于在静态和动态环境中测量人体轨迹和脚的 3D 模型非常强大。该工具使研究人员能够定量比较古人类足迹化石的拱门，以便从中得出生物力学解释，和/或提供一种不同的方法来量化活人的足部形态。
Fossil footprints (i.e., tracks) were believed to document arch anatomical evolution, although our recent work has shown that track arches record foot kinematics instead. Analyses of track arches can thereby inform the evolution of human locomotion, although quantifying this 3‐D aspect of track morphology is difficult. Here, we present a volumetric method for measuring the arches of 3‐D models of human tracks and feet, using both Autodesk Maya and Blender software. The method involves generation of a 3‐D object that represents the space beneath the longitudinal arch, and measurement of that arch object's geometry and spatial orientation. We provide relevant tools and guidance for users to apply this technique to their own data. We present three case studies to demonstrate potential applications. These include, (1) measuring the arches of static and dynamic human feet, (2) comparing the arches of human tracks with the arches of the feet that made them, and (3) direct comparisons of human track and foot arch morphology throughout simulated track formation. The volumetric measurement tool proved robust for measuring 3‐D models of human tracks and feet, in static and dynamic contexts. This tool enables researchers to quantitatively compare arches of fossil hominin tracks, in order to derive biomechanical interpretations from them, and/or offers a different approach for quantifying foot morphology in living humans.