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Please use this identifier to cite or link to this item: http://hdl.handle.net/10564/3941

Title: Visualizing and Evaluating Finger Movement Using Combined Acceleration and Contact-Force Sensors: A Proof-of-Concept Study.
Other Titles: 加速度と接触力センサーを用いた手指運動の可視化と評価 : POC試験
Authors: Oigawa, Hitomi
Musha, Yoshiro
Ishimine, Youhei
Kinjo, Sumito
Takesue, Yuya
Negoro, Hideyuki
Umeda, Tomohiro
Keywords: healthcare
wearable sensor
acceleration
strain
10-s grip and release
grip strength
Issue Date: 9-Mar-2021
Publisher: MDPI
Citation: Sensors Vol.21 No.5 Article No.1918 (2021 Mar)
Abstract: The 10-s grip and release is a method to evaluate hand dexterity. Current evaluations only visually determine the presence or absence of a disability, but experienced physicians may also make other diagnoses. In this study, we investigated a method for evaluating hand movement function by acquiring and analyzing fingertip data during a 10-s grip and release using a wearable sensor that can measure triaxial acceleration and strain. The subjects were two healthy females. The analysis was performed on the x-, y-, and z-axis data, and absolute acceleration and contact force of all fingertips. We calculated the variability of the data, the number of grip and release, the frequency response, and each finger's correlation. Experiments with some grip-and-release patterns have resulted in different characteristics for each. It was suggested that this could be expressed in radar charts to intuitively know the state of grip and release. Contact-force data of each finger were found to be useful for understanding the characteristics of grip and release and improving the accuracy of calculating the number of times to grip and release. Frequency analysis suggests that knowing the periodicity of grip and release can detect unnatural grip and release and tremor states. The correlations between the fingers allow us to consider the finger's grip-and-release characteristics, considering the hand's anatomy. By taking these factors into account, it is thought that the 10-s grip-and-release test could give us a new value by objectively assessing the motor functions of the hands other than the number of times of grip and release.
Description: 博士(医学)・甲第795号・令和3年6月25日
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
URI: http://hdl.handle.net/10564/3941
ISSN: 14248220
DOI: https://doi.org/10.3390/s21051918
Academic Degrees and number: 24601A795
Degree-granting date: 2021-06-25
Degree name: 博士(医学)
Degree-granting institutions: 奈良県立医科大学
Appears in Collections:2021年度

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01甲795本文の要旨.pdf甲795本文の要旨1.52 MBAdobe PDFView/Open
02甲795審査要旨.pdf甲795審査要旨85.85 kBAdobe PDFView/Open
03甲795本文.pdf甲795本文1.82 MBAdobe PDFView/Open

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