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Validity of a FBG-based smart sock system for measuring toe grip function in human foot

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posted on 29.01.2020, 15:13 by Yixuan Leow, Marabelle Li-Wen Heng, Yimin Liu, Daniel FongDaniel Fong, Chi Chiu Chan, Pui Wah Kong
This study developed a smart sock system using optical fiber technology to measure the toe grip function of individual toes. The system comprised Fiber Bragg grating (FBG) sensors incorporated into a sock garment for measuring maximum toe flexion displacements. Calibration equation of each FBG sensor was determined from 3D motion capture system on 10 female subjects. The validity of the smart sock system was checked by comparing maximum toe flexion displacement against the gold standard of 3D motion capture. The root mean squared error was 0.95 (0.57) cm across 10 toes. The magnitude of toe displacement and error were similar between the left and right foot. In conclusion, the FBG-based smart sock system can successfully measure maximum toe flexion displacements of individual toes simultaneously. This system can be developed to support the evaluation of toe grip function in clinical and field settings.

Funding

Singapore Ministry of Education Academic Research Fund, Tier 1 Grant

History

School

  • Sport, Exercise and Health Sciences

Published in

Journal of Mechanics in Medicine and Biology

Volume

20

Issue

3

Publisher

World Scientific Publishing

Version

AM (Accepted Manuscript)

Rights holder

© World Scientific Publishing Company

Publisher statement

Electronic version of an article published as Journal of Mechanics in Medicine and Biology, 20, 3, 2020, 2050015 (9 pages), https://doi.org/10.1142/S0219519420500153, © copyright World Scientific Publishing Company https://www.worldscientific.com/worldscinet/jmmb.

Acceptance date

28/01/2020

Publication date

2020-05-07

Copyright date

2020

ISSN

0219-5194

eISSN

1793-6810

Language

en

Depositor

Dr Daniel Fong. Deposit date: 29 January 2020

Article number

2050015

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