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Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials, Volume 34, Number 8(1) (2022)
Copyright(C) MYU K.K.
pp. 2929-2954
S&M3015 Research Paper of Special Issue
https://doi.org/10.18494/SAM3972
Published: August 2, 2022

Analysis and Visualization of Relationship between Stress and Care Activities toward Reduction in Caregiver Workload [PDF]

Atsushi Miyaji, Yuta Kimata, Tomokazu Matsui, Manato Fujimoto, and Keiichi Yasumoto

(Received May 18, 2022; Accepted July 15, 2022)

Keywords: caregiver, stress level, objective stress, subjective stress

In Japan, the demand for nursing homes is increasing owing to the rapid aging of the population, and the shortage of caregivers has become a serious problem. This problem has been recognized as a social issue because it increases the workload per caregiver. In response, we have been developing a platform that can easily collect data on nursing care activities to reduce the workload on the basis of the idea that the mental state (i.e., stress) of caregivers, which changes during care activities, might markedly affect their work efficiency. The objective of this study was to obtain new knowledge for reducing the workload of caregivers by visualizing and analyzing their stress. Specifically, we asked caregivers to wear the device, from which we obtained the objective stress indicators of R-R interval (RRI) and low frequency (LF)/high frequency (HF) ratio. We also obtained subjective stress indicators from questionnaires administered before the start of the experiment, before work, during breaks, and after work. To confirm that the stress level of caregivers depends on their care activity, work shift, and workday, we conducted an empirical experiment in an actual nursing home. We distributed devices and applications to five caregivers, obtained measurement data for a total of 28 days, and analyzed and visualized the changes in psychological states related to care activities, work shift, and workdays. As a result, we were able to collect data on the psychological state for 5 to 15 days per caregiver. Furthermore, the analysis of the data showed that, even though objective stress indicators and subjective evaluations did not necessarily coincide, stress tended to increase with specific care activities, work shift, and workdays. In addition, the subjective and objective stress indicators may change depending on the personality of the caregivers themselves.

Corresponding author: Manato Fujimoto


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This work is licensed under a Creative Commons Attribution 4.0 International License.

Cite this article
Atsushi Miyaji, Yuta Kimata, Tomokazu Matsui, Manato Fujimoto, and Keiichi Yasumoto, Analysis and Visualization of Relationship between Stress and Care Activities toward Reduction in Caregiver Workload, Sens. Mater., Vol. 34, No. 8, 2022, p. 2929-2954.



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