Protective Effect of Insole on Foot Injury

Foot injuries such as fractures, ligaments tear, ankle instability often occur often occurred in sports and work. This chapter described protective issues from the perspective of the objective data in the context of customized insole. The foot-related injuries issues were approached from the aspects of material, structure and effect of insole. For the foot deformity of flatfoot patients, to avoid the future injuries of foot, the lower material hardness of insole was more suitable for the plantar pressure release of severe flatfoot. The higher material hardness of insole was conducive to improve structure of the medial longitudinal arch. In addition, the biomechanical effect of orthopedic insole on correction of flatfoot had been investigated in comparison data of subject. The effective correction was very helpful for flatfoot patients and even affect loading on the internal tissue. The biomechanical behavior on foot tissue was studied by finite element simulation and experiments. This would be helpful for foot injury patients to avoid future complications and reasonable rehabilitation.