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Article

Clip-On IMU System for Assessing Age-Related Changes in Hand Functions

1
Department of Biomedical Engineering, Hanyang University, Seoul 04763, Korea
2
ImagineXlab, Hanyang University, Seoul 04763, Korea
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Sensors 2020, 20(21), 6313; https://doi.org/10.3390/s20216313
Received: 7 October 2020 / Revised: 30 October 2020 / Accepted: 3 November 2020 / Published: 5 November 2020
(This article belongs to the Section Wearables)
Hand functions affect the instrumental activities of daily living. While functional outcome measures, such as a targeted box and block test, have been widely used in clinical settings and provide a useful measure of overall performance, the advent of a wearable Inertial Measurement Unit(IMU)-based system enables the examination of the specific performance and kinematic parameters of hand movements. This study proposed a novel clip-on IMU system to facilitate the clinically fitted measurements of fine-motor finger and wrist joint movements. Clinical validation was conducted with the aim of characterising age-related changes in hand functions, namely grasping, transporting, and releasing blocks. Eighteen young (age 20–31) and sixteen healthy older adults (age 75–89) were evaluated during the box and block test. The results demonstrated that an older age was characterized by slower movements and higher variations and kinematic alterations in the hand functions, such as a larger range of motions at the fingers as well as kinematic trajectories. The proposed IMU system and subsequent validations highlight the value of the performance and kinematics parameters for a more comprehensive understanding of fine-motor finger and wrist movements that could shed light on further implementations in clinical and practical settings. View Full-Text
Keywords: hand and finger kinematics; inertial measurement units; targeted box and block test; real-time motion; hand function assessment hand and finger kinematics; inertial measurement units; targeted box and block test; real-time motion; hand function assessment
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MDPI and ACS Style

Lee, S.; Lee, H.; Lee, J.; Ryu, H.; Kim, I.Y.; Kim, J. Clip-On IMU System for Assessing Age-Related Changes in Hand Functions. Sensors 2020, 20, 6313. https://doi.org/10.3390/s20216313

AMA Style

Lee S, Lee H, Lee J, Ryu H, Kim IY, Kim J. Clip-On IMU System for Assessing Age-Related Changes in Hand Functions. Sensors. 2020; 20(21):6313. https://doi.org/10.3390/s20216313

Chicago/Turabian Style

Lee, Seungjae, Hyejeong Lee, Jongshill Lee, Hokyoung Ryu, In Young Kim, and Jieun Kim. 2020. "Clip-On IMU System for Assessing Age-Related Changes in Hand Functions" Sensors 20, no. 21: 6313. https://doi.org/10.3390/s20216313

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