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Proceedings Paper

Application of a system for measuring foot plantar pressure for evaluation of human mobility
Author(s): Ewa Klimiec; Barbara Jasiewicz; Krzysztof Zaraska; Jacek Piekarski; Piotr Guzdek; Grzegorz Kołaszczyński
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Paper Abstract

The paper presents evaluation of human mobility by gait analysis, carried out in natural conditions (outside laboratory). Foot plantar pressure is measured using a shoe insole with 8 sensors placed in different anatomical zones of the foot, and placed inside a sports footwear. Polarized PVDF foil is used as a sensor material. A wireless transmission system is used to transmit voltage values to the computer. Due to linear relationship between force and transducer voltage, energy released during walking in arbitrary units can be calculated as integral of the square of transducer voltage over time. Gait measurements have been done over the next few days on healthy person during normal walking and slow walking. Performed measurements allow determination of walking speed (number of steps per second), gait rhythm and manner of walking (applying force to inside versus outside part of the sole). It is found that switching from normal to slow walk increases gait energy by 25% while the pressure distribution across the anatomical regions of the foot remains unchanged. The results will be used for developing a programme for evaluation of patients with cardiac failure and future integration of actimetry with pulse and spirometry measurements.

Paper Details

Date Published: 10 November 2016
PDF: 11 pages
Proc. SPIE 10161, 14th International Conference on Optical and Electronic Sensors, 1016110 (10 November 2016); doi: 10.1117/12.2245154
Show Author Affiliations
Ewa Klimiec, Institute of Electron Technology (Poland)
Barbara Jasiewicz, Jagiellonian Univ. (Poland)
Krzysztof Zaraska, Institute of Electron Technology (Poland)
Jacek Piekarski, Institute of Electron Technology (Poland)
Piotr Guzdek, Institute of Electron Technology (Poland)
Grzegorz Kołaszczyński, Institute of Electron Technology (Poland)

Published in SPIE Proceedings Vol. 10161:
14th International Conference on Optical and Electronic Sensors
Piotr Jasiński, Editor(s)

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