Insole for Relief of Over-Pronation and Knee Joint Stress

Abstract

An insole for placement inside a shoe for use in reducing over-pronation, associated misalignment of the patella (knee cap), and knee joint stress of a user. The insole has a top sheet and a support base cushion. The support base cushion has a forefoot mid-cushion area that extends from a toe end to a metatarsal area of the insole and an arch to heel area that extends from a metatarsal area to a heel end of the insole. The insole has a forefoot cushion secured to the forefoot mid-cushion area. The insole also has a medial support cradle, which reduces over-pronation and knee stresses, a lateral support cradle, which provides a side support to help reduce stress on the knee, and a heel cushion, which acts in cooperation with the medial support cradle to resist excessive pronation, all secured to the bottom of the support base cushion in the arch to heel area.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 605,664, filed Mar. 1, 2012.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not applicable.TECHNICAL FIELD[0003]This invention relates to the field of replacement insoles for shoes.BACKGROUND[0004]Shoes, particularly athletic shoes, generally have an insole placed within the foot-receiving compartment when sold. The insole is positioned so that the user's foot will rest thereon while wearing the shoe. Generally, such insoles are removable and may be replaced with replacement insoles which may employ various features of benefit to the user or the particular needs of the user's feet.[0005]In normal pronation (the inward roll of the foot while walking or running), a moderate degree. However, certain individuals have biomechanical characteristics which may cause over-pronation and excessive internal rotation of the leg. It has been reported that th...

AI Technical Summary

Benefits of technology

This patent describes an insole for shoe that aims to reduce the problem of over-pronation and knee stress. The insole has a support base cushion with a forefoot cushion, medial support cradle, lateral support cradle, and heel cushion. These cradles provide support to the foot and help reduce excessive pronation and knee stress. The heel cushion acts in cooperation with the firm medial support cradle to resist excessive pronation. The insole is particularly suited for women with over-pronation tendencies and knee stress issues.

Problems solved by technology

However, certain individuals have biomechanical characteristics which may cause over-pronation and excessive internal rotation of the leg.

It has been reported that those who over-pronate also tend to exhibit misalignment of the patella (knee cap).

It has been reported that due to biomechanical considerations, including a naturally higher quadriceps angle or Q-angle, women may be more prone than men to exhibit misalignment of the patella, in particular with excessive foot pronation.

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