Optically Instrumented Insole for Gait Plantar and Shear Force Monitoring

Catia Tavares; Flavia Leite; Maria De Fatima Domingues; Tiago Paixao; Nelia Alberto; Antonio Ramos; Hugo Silva; Paulo Fernando Da Costa Antunes

doi:10.1109/ACCESS.2021.3115472

Optically Instrumented Insole for Gait Plantar and Shear Force Monitoring

Catia Tavares, Flavia Leite, Maria De Fatima Domingues, Tiago Paixao, Nelia Alberto, Antonio Ramos, Hugo Silva, Paulo Fernando Da Costa Antunes

Biomedical Engineering & Biotechnology

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

In this work, a fiber Bragg gratings (FBGs) based sensing insole, capable of simultaneously measure plantar force (PF) and shear force (SF) is proposed. The insole has four measuring points, strategically located for a full gait analysis. Each sensing point contains a sensor-cell which consists of a polylactic acid (PLA) structure, covered by an epoxy resin layer, and crossed by one optical fiber with two FBGs, FBG1 and FBG2, respectively. Due to the specific design of the system, the FBG1 is sensitive to both forces (with higher sensitivity to the PF), while the FBG2 is designed to detect only the SF. The instrumented insole was tested during static and gait exercises, and the results, obtained for the PF and SF monitoring, were according to those theoretically expected.

Original language	British English
Pages (from-to)	132480-132490
Number of pages	11
Journal	IEEE Access
Volume	9
DOIs	https://doi.org/10.1109/ACCESS.2021.3115472
State	Published - 2021

Keywords

Foot plantar sensor
gait cycle anomalies
multiplexed fiber Bragg gratings
pressure ulcers
shear force sensor

Access to Document

10.1109/ACCESS.2021.3115472

Cite this

@article{c268836fe6d14ba9a5560190b4b6c704,

title = "Optically Instrumented Insole for Gait Plantar and Shear Force Monitoring",

abstract = "In this work, a fiber Bragg gratings (FBGs) based sensing insole, capable of simultaneously measure plantar force (PF) and shear force (SF) is proposed. The insole has four measuring points, strategically located for a full gait analysis. Each sensing point contains a sensor-cell which consists of a polylactic acid (PLA) structure, covered by an epoxy resin layer, and crossed by one optical fiber with two FBGs, FBG1 and FBG2, respectively. Due to the specific design of the system, the FBG1 is sensitive to both forces (with higher sensitivity to the PF), while the FBG2 is designed to detect only the SF. The instrumented insole was tested during static and gait exercises, and the results, obtained for the PF and SF monitoring, were according to those theoretically expected.",

keywords = "Foot plantar sensor, gait cycle anomalies, multiplexed fiber Bragg gratings, pressure ulcers, shear force sensor",

author = "Catia Tavares and Flavia Leite and Domingues, {Maria De Fatima} and Tiago Paixao and Nelia Alberto and Antonio Ramos and Hugo Silva and Antunes, {Paulo Fernando Da Costa}",

note = "Publisher Copyright: {\textcopyright} 2013 IEEE.",

year = "2021",

doi = "10.1109/ACCESS.2021.3115472",

language = "British English",

volume = "9",

pages = "132480--132490",

journal = "IEEE Access",

issn = "2169-3536",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

T1 - Optically Instrumented Insole for Gait Plantar and Shear Force Monitoring

AU - Tavares, Catia

AU - Leite, Flavia

AU - Domingues, Maria De Fatima

AU - Paixao, Tiago

AU - Alberto, Nelia

AU - Ramos, Antonio

AU - Silva, Hugo

AU - Antunes, Paulo Fernando Da Costa

PY - 2021

Y1 - 2021

N2 - In this work, a fiber Bragg gratings (FBGs) based sensing insole, capable of simultaneously measure plantar force (PF) and shear force (SF) is proposed. The insole has four measuring points, strategically located for a full gait analysis. Each sensing point contains a sensor-cell which consists of a polylactic acid (PLA) structure, covered by an epoxy resin layer, and crossed by one optical fiber with two FBGs, FBG1 and FBG2, respectively. Due to the specific design of the system, the FBG1 is sensitive to both forces (with higher sensitivity to the PF), while the FBG2 is designed to detect only the SF. The instrumented insole was tested during static and gait exercises, and the results, obtained for the PF and SF monitoring, were according to those theoretically expected.

AB - In this work, a fiber Bragg gratings (FBGs) based sensing insole, capable of simultaneously measure plantar force (PF) and shear force (SF) is proposed. The insole has four measuring points, strategically located for a full gait analysis. Each sensing point contains a sensor-cell which consists of a polylactic acid (PLA) structure, covered by an epoxy resin layer, and crossed by one optical fiber with two FBGs, FBG1 and FBG2, respectively. Due to the specific design of the system, the FBG1 is sensitive to both forces (with higher sensitivity to the PF), while the FBG2 is designed to detect only the SF. The instrumented insole was tested during static and gait exercises, and the results, obtained for the PF and SF monitoring, were according to those theoretically expected.

KW - Foot plantar sensor

KW - gait cycle anomalies

KW - multiplexed fiber Bragg gratings

KW - pressure ulcers

KW - shear force sensor

UR - http://www.scopus.com/inward/record.url?scp=85115804531&partnerID=8YFLogxK

U2 - 10.1109/ACCESS.2021.3115472

DO - 10.1109/ACCESS.2021.3115472

M3 - Article

AN - SCOPUS:85115804531

SN - 2169-3536

VL - 9

SP - 132480

EP - 132490

JO - IEEE Access

JF - IEEE Access

ER -

Optically Instrumented Insole for Gait Plantar and Shear Force Monitoring

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this