Fiber Bragg Based Sensors for Foot Plantar Pressure Analysis

Arnaldo G. Leal-Junior, M. Fátima Domingues, Rui Min, Débora Vilarinho, Antreas Theodosiou, Cátia Tavares, Nélia Alberto, Cátia Leitão, Kyriacos Kalli, Anselmo Frizera-Neto, Paulo André, Paulo Antunes, Carlos Marques

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations


Gait analysis is of major importance in physical rehabilitation scenarios, lower limbs diseases diagnosis and prevention. Foot plantar pressure is a key parameter in the gait analysis and its dynamic monitoring is crucial for an accurate assessment of gait related pathologies and/or rehabilitation status evolution. It is therefore critical to invest effort in research for foot plantar analysis technologies. From that perspective, optical fiber sensors appear to be an excellent solution, given their sensing advantages for medical applications, when compared with their electronic counterparts. This chapter explores the use of optical fiber Bragg grating (FBG) sensors, both in plastic and silica optical fiber, to dynamically monitor the foot plantar pressure. An array of FBGs was integrated in a specially designed cork insole, with the optical sensors placed at key pressure points for analysis. Both insoles, containing plastic and silica optical fiber sensors, were tested for dynamic gait monitoring and body center of mass displacement, showing the reliability of this sensing technology for foot plantar pressure monitoring during gait motion.

Original languageBritish English
Title of host publicationBiomedical Engineering Systems and Technologies - 11th International Joint Conference, BIOSTEC 2018, Revised Selected Papers
EditorsSergi Bermúdez i Badia, Alberto Cliquet, Giovanni Saggio, Sheldon Wiebe, Reyer Zwiggelaar, Paul Anderson, Ana Fred, Hugo Gamboa
PublisherSpringer Verlag
Number of pages23
ISBN (Print)9783030291952
StatePublished - 2019
Event11th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2018 - Funchal, Portugal
Duration: 19 Jan 201821 Jan 2018

Publication series

NameCommunications in Computer and Information Science
ISSN (Print)1865-0929
ISSN (Electronic)1865-0937


Conference11th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2018


  • Fiber
  • Fiber Bragg Gratings
  • Foot plantar pressure
  • Gait analysis
  • Polymer optical
  • Silica optical fiber


Dive into the research topics of 'Fiber Bragg Based Sensors for Foot Plantar Pressure Analysis'. Together they form a unique fingerprint.

Cite this