Stabilization mechanism embedded in the foot musculoskeletal structure and the evolution of human bipedalism

在本研究中，我们试图阐明人类脚如何以有利的方式与地面进行机械相互作用以实现稳定的两足行走，以及足部肌肉骨骼系统的固有结构如何可能促进这种与地面的机械相互作用，以期对理解人类两足行走的起源和演化有所帮助。具体地说，我们构建了一个测量人体行走过程中足底剪切力分布的系统，揭示了人体行走过程中剪切力分布的细节。我们还开发了一个基于解剖学的足部肌肉骨骼模型，以分析人类足部的形态特征如何影响足部与地面之间的机械相互作用。

In this study, we try to clarify how the human foot mechanically interacts with the ground in a favorable manner to realize stable bipedal walking, and how the inherent structure of the foot musculoskeletal system possibly facilitates such mechanical interaction with the ground, for gaining some insights towards understanding the origin and evolution of human bipedal walking. Specifically, we have constructed a system to measure plantar shear force distribution during human walking and revealed details of shear force distribution in human walking. We also developed an anatomically-based foot musculoskeletal model to analyze how morphological characteristics of human foot affect the mechanical interaction between the foot and ground.