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 MarquesEmail author
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 1024)


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.


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



CAPES (88887.095626/2015-01); FAPES (72982608); CNPq (304192/2016-3 and 310310/2015-6); FCT (SFRH/BPD/101372/2014 and SFRH/ BPD/109458/2015); Fundação para Ciência e a Tecnologia/Ministério da Educação e Ciência (UID/EEA/50008/2013); European Regional Development Fund (PT2020 Partnership Agreement); FCT, IT-LA (PREDICT scientific action); Fundamental Research Funds for the Heilongjiang Provincial Universities (KJCXZD201703).


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Arnaldo G. Leal-Junior
    • 1
  • M. Fátima Domingues
    • 2
  • Rui Min
    • 3
  • Débora Vilarinho
    • 4
  • Antreas Theodosiou
    • 5
  • Cátia Tavares
    • 4
  • Nélia Alberto
    • 2
  • Cátia Leitão
    • 4
  • Kyriacos Kalli
    • 5
  • Anselmo Frizera-Neto
    • 1
  • Paulo André
    • 6
  • Paulo Antunes
    • 2
    • 4
  • Carlos Marques
    • 2
    • 4
    Email author
  1. 1.Telecommunications Laboratory, Electrical Engineering DepartmentFederal University of Espírito SantoVitoriaBrazil
  2. 2.Instituto de TelecomunicaçõesAveiroPortugal
  3. 3.ITEAM Research Institute, Universitat Politècnica de ValènciaValenciaSpain
  4. 4.Department of Physics and I3NUniversity of AveiroAveiroPortugal
  5. 5.Photonics and Optical Sensors Research Laboratory (PhOSLab)Cyprus University of TechnologyLimassolCyprus
  6. 6.Instituto de Telecomunicações and Department of Electrical and Computer Engineering, Instituto Superior TécnicoUniversity of LisbonLisbonPortugal

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