A low Cost Smart Insole for Diabetic Foot Prevention

The foot pressure measurement is important in gait and posture research for diagnosis of pressure of the feet for the athletes, back injuries, adaptation of insoles for orthopaedic applications and prevention of diabetic foot ulceration. There are several methods to measure the distribution of foot pressure. However, traditional systems have the disadvantage of being no flexible and thus influencing the measurement. In this work we present a low cost smart insole for diagnosis and prevention of plantar perforating disease in diabetic patients. The system consists of an instrumented insole that contains innovative sensors witch allow the quantification of plantar pressure at critical points that have a high risk of ulceration, it also contains a temperature / humidity sensors. A high rate of temperature and humidity allows faster formation of the ulcer, especially in the high friction points. All sensors for both feet communicate wirelessly and in real time with a mobile application through Bluetooth.