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Journal of Electrical and Computer Engineering
Volume 2011, Article ID 136936, 14 pages
Research Article

Diabetic Foot Prevention: Repeatability of the Loran Platform Plantar Pressure and Load Distribution Measurements in Nondiabetic Subjects during Bipedal Standing—A Pilot Study

1Bioengineering Signal Analysis and Image Processing Research Group (BASPI), Department of Electronics, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
2School of Medicine, Pontificia Universidad Javeriana and San Ignacio Hospital, Bogotá 110231, Colombia
3Scotsig, 40 Westbourne Gardens, Glasgow G12 9PF, UK

Received 17 September 2010; Accepted 14 February 2011

Academic Editor: David Hamilton

Copyright © 2011 Martha Zequera et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This study was designed to assess the repeatability of the Loran Platform and evaluate the variability of plantar pressure and postural balance, during barefoot standing in nondiabetic subjects, for future diabetic foot clinical evaluation. Measurements were taken for eight nondiabetic subjects (4 females, 4 males, aged 477.2 years) who had no musculoskeletal symptoms. Five variables were measured with the platform in the barefoot standing position. Ten measurements were taken using two different techniques for feet and posture positioning, during three sessions, once a week. For most measurements, no significant effect over time was found with Student's t-test (). The ANOVA test of statistical significance confirmed that measurement differences between subjects showed higher variations than measurements taken from the same subject (). The measurements taken by the Loran Platform system were found to be repeatable.