1A2-O08 Simultaneous measurement system of plantar pressure and shear forces to identify factors associated with callus in diabetic patients(Nursing and Mechatronics)

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  • 1A2-O08 糖尿病患者における胼胝保有要因解明のための足底圧力・剪断力同時測定システム(看護とメカトロニクス)

Abstract

The aim of this study is to identify whether plantar shear stress in neuropathic diabetic patients with callus is increased compared with those without callus. The differences in foot deformity, limited joint mobility, repetitive stress of walking and ill-fitting shoes between patients with callus and those without were also determined. Subjects were recruited from the Diabetic Foot Outpatient Clinic. An in-shoe measurement system, which has flexible and thin insoles, was newly developed and enabled measurement of both plantar pressure and shear stress simultaneously when subjects walked as usual on a 10m walkway. It was found that plantar shear stress adjusted for weight during the push-off phase was increased by 1.32 times in patients with callus. Increased plantar shear stress may be caused by gait change that patients having callus push off with the metatarsal head instead of the toe as a result of foot deformity and limited joint mobility.

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