In-shoe plantar shear stress sensor design, calibration and evaluation for the diabetic foot.

ABSTRACT: Plantar shear stress may have an important role in the formation of a Diabetic Foot Ulcer, but its measurement is regarded as challenging and has limited research. This paper highlights the importance of anatomical specific shear sensor calibration and presents a feasibility study of a novel shear sensing system which has measured in-shoe shear stress from gait activity on both healthy and diabetic subjects. The sensing insole was based on a strain gauge array embedded in a silicone insole backed with a commercial normal pressure sensor. Sensor calibration factors were investigated using a custom mechanical test rig with indenter to exert both normal and shear forces. Indenter size and location were varied to investigate the importance of both loading area and position on measurement accur

SUBMITTER: Haron AH 

PROVIDER: S-EPMC11373826 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature