Friction Analysis of the Sneakers Insole

Abstract

INTRODUCTION To enable athletes in a sport more comfortable, better performance, more emphasis sports shoes design technology and demand for the athletes, the coverage of sports shoes to protect feet it is not a simple function, it also has the following functions : 1. Foot protection and support. 2.The role of comfort and health. 3.Shock absorption functions and aesthetic and decorative (Zhao, zhi xiong. 1997). Generally, the basic structure of sports shoes are four parts : upper, outside end, and end with the end of upper surface of the shoes is part of foreign soles touch the ground and what is the end, the end is the sole internal material. also known as end within pad inside, we called soles. Most of the bones have come into contact with (Richard C.. Wilson, D.P.M. 2003). The main demand is pleasing uppers, soles part of the performance is related to the main characters, Design is the essence of sports shoes, from the outside non-slip function to the end of the inner end of the shock absorber function, and so far, insole studies have focused on the distribution of pressure in the shock absorber function or circumstances, mostly to do with the nature of the material soles study at the expense of human contact with the soles comfort, as well as contact friction arising impact on the campaign. When we engage in an activity at the same time several external forces in our bodies and friction is one of them.