• Sakshi Sethi

Abstract- The pressure measurement of the interface between the shoe soles and foot is an important aspect in analysis of gait and many other health diagnoses. The abnormal pressure may indicate health related complications like instability in gait pattern, postural distortions, risks of ulcers development or callus formation especially in diabetic foot as well as have many other biomedical analytical applications. Only the proper orthotics can be made to redistribute the pressure evenly on the foot. In this study, strain gauge pressure sensors (sensing device) are integrated on the insole of footwear which indicates the pressure exerted by its corresponding value of output voltage. The system consists of 8 tiny strain gauge sensor elements. The voltage is then amplified by the amplifier unit. The data from the amplifier section is then sent to data acquisition section. Lab VIEW software is then employed for processing the data for normalization and representation in computer. The system software indicates the strain in every small sensor element of the insole in actual time and then saves that data to a file. The system is easy to use, accurate and inexpensive. This project helps in the monitoring of the pressure distribution underneath the foot to obtain the knowledge of the functioning of normal and abnormal feet in numerous situations, such as, if the subject is standing, walking or running etc. It also helps the doctors to relate the distribution of pressure to the affected person’s medical conditions and therefore, special shoes for patients with leprosy or diabetics will be designed.

Plantar pressure, strain gauge pressure sensors, gait analysis.

"Foot Pressure Mapping System Using Strain Gauge Pressure Sensors", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.75-79, May-2019, Available :http://www.jetir.org/papers/JETIR1905M14.pdf

"Foot Pressure Mapping System Using Strain Gauge Pressure Sensors", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp75-79, May-2019, Available at : http://www.jetir.org/papers/JETIR1905M14.pdf