人类足部的骨骼,由韧带、肌肉连结在一起,形成一种前宽后窄的拱桥样的结构,称为足弓。足弓宽的一头的两个支点,在拇趾和小趾的后方,窄的一头支点在足跟。“拱桥”本身具有一定的弹性。身体的重量传递到足弓后,即按一定比例分配到三个支撑点,同时发生轻微的变形,缓冲震荡,保护脑、 Human bones of the foot, ligaments, muscles together, forming a wide front narrow arch-like structure, called the arch. The two fulcrums of the wide arch of the arch, at the rear of the big toe and the little toe, have a narrow fulcrum in the heel. “Arch Bridge” itself has a certain flexibility. After the body’s weight is transferred to the arch, it is distributed to the three support points according to a certain proportion, and slight deformation occurs at the same time, the shock is shocked, the brain is protected,