Journal
JOURNAL OF BIOMEDICAL OPTICS
Volume 22, Issue 9, Pages -Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.JBO.22.9.091507
Keywords
gait vertical ground reaction force; gait plantar pressure; physical rehabilitation; optical fiber sensors; insole fiber Bragg gratings network
Funding
- FCT/MEC
- FEDER-PT partnership [UID/EEA/50008/2013, UID/CTM/50025/2013]
- FCT [PTDC/DTP-DES/6776/2014, SFRH/BPD/101372/2014, SFRH/BPD/78141/2011, SFRH/BPD/109458/2015, IF/01393/2015]
- Instituto de Telecomunicacoes through the project WeHope
- WeHope project [818/2016]
- CAPES [88887.095626/2015-01, A126/2013]
- FAPES [67566480, 72982608]
- Fundação para a Ciência e a Tecnologia [UID/CTM/50025/2013] Funding Source: FCT
Ask authors/readers for more resources
In an era of unprecedented progress in technology and increase in population age, continuous and close monitoring of elder citizens and patients is becoming more of a necessity than a luxury. Contributing toward this field and enhancing the life quality of elder citizens and patients with disabilities, this work presents the design and implementation of a noninvasive platform and insole fiber Bragg grating sensors network to monitor the vertical ground reaction forces distribution induced in the foot plantar surface during gait and body center of mass displacements. The acquired measurements are a reliable indication of the accuracy and consistency of the proposed solution in monitoring and mapping the vertical forces active on the foot plantar sole, with a sensitivity up to 11.06 pm/N. The acquired measurements can be used to infer the foot structure and health condition, in addition to anomalies related to spine function and other pathologies (e.g., related to diabetes); also its application in rehabilitation robotics field can dramatically reduce the computational burden of exoskeletons' control strategy. The proposed technology has the advantages of optical fiber sensing (robustness, noninvasiveness, accuracy, and electromagnetic insensitivity) to surpass all drawbacks verified in traditionally used sensing systems (fragility, instability, and inconsistent feedback). (C) 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
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