An individual who neutrally pronates initially strikes the ground on the lateral side of the heel.

一个人正常跑步时首先是后跟外侧触地。

The inside of a shoe is much more likely to be worn down for a runner who over-pronates. It is more common for flat-footed runners.

脚踝过度内翻的人通常会把鞋子的内侧先穿烂，在平足的人中更为常见。