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Kim and Hur: Inhalation Effects of Aroma Essential Oil on Quality of Sleep for Shift Nurses after Night Work
Original Article

Journal of Korean Academy of Nursing 2016; 46(6): 769-779.

Published online: 30 December 2016

DOI: https://doi.org/10.4040/jkan.2016.46.6.769

Inhalation Effects of Aroma Essential Oil on Quality of Sleep for Shift Nurses after Night Work

WonJong Kim1, Myung-Haeng Hur2

1Department of Nursing, Gimcheon University, Gimcheon, Korea.

2College of Nursing, Eulji University, Daejeon, Korea.

Address reprint requests to : Hur, Myung-Haeng. College of Nursing, Eulji University, 77 Gyeryong-ro 771 beon-gil, Jung-gu, Daejeon 34824, Korea. Tel: +82-42-259-1714, Fax: +82-42-259-1709, mhhur@eulji.ac.kr

Received 13 October 2015       Revised 7 July 2016       Accepted 30 July 2016

© 2016 Korean Society of Nursing Science

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution NoDerivs License. (http://creativecommons.org/licenses/by-nd/4.0/) If the original work is properly cited and retained without any modification or reproduction, it can be used and re-distributed in any format and medium.

Abstract

Purpose

This study was an experimental study to compare the inhalation effects of aroma essential oil on the quality of sleep (QOS) for shift nurses after working nights.

Methods

The participants were 60 healthy adults who didn't have any disease. As an experimental treatment, the participants in the experimental group were asked to inhale essential oil for 3 minutes at a distance of approximately 10 cm fromt heir nose and then they were asked to sleep with the aroma stone beside their head (within a 30 cm distance). QOS were measured four times on Pretest, Day 1, Day 2, and Day 3 after they slept. To measure QOS, Perceived QOS (Numeric Rating Scale), the Verran & Synder-Halpern (VSH) Sleep Scale were used, and number of awakenings (NoA) was measured by Actigraph.

Results

There were no significant differences in the homogeneity tests for general characteristics and dependent variables prior to the experiments, except for VSH of subjective sleep quality. Also, there was no significant interaction between group and time. The VSH of the experimental group was higher than the control group (F=6.39, p=.002). The NoA between the experimental group and the control group was significantly different after experimental treatment 3rd day (F=13.35, p=.001).

Conclusion

The findings show that the inhalation of aroma essential oil had effects to increase the quality of sleep. Therefore, the inhalation of aroma essential oil could be applied to general nursing interventions to improve the quality of sleep.

Keywords: Aromatherapy, Lavender, Shift work sleep disorder

Figures and Tables

Figure 1

Research design.

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Figure 2

Process flow diagram.

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Figure 3

Comparison of number of awakenings between two groups.

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Table 1

Homogeneity Tests of General Characteristics of the Participants (N=60)

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*Fisher's exact test; Exp.=Experimental group; Cont.=Control group; St=Sleeping Time; QOS=Quality of Sleep: NRS=Numeric Rating Scale; VSH=Verran & Synder-Halpern sleep scale.

Table 2

Comparison of QOS (NRS), QOS (VSH) and NoA between Two Groups (N=60)

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Exp. G=Experimental group; Cont. G=Control group; D0=Pretest day; D1=Post-test 1st day; D2=Post-test 2nd day; D3=Post-test 3rd day; QOS=Quality of Sleep; NRS=Numeric Rating Scale; VSH=Verran & Synder-Halpern sleep scale; NoA=Numbers of Awakenings; F (p)*=Repeated measures of ANCOVA (Covariates: NRS D0=5.27, VSH D0=44.2); G*t=Group*Time; T1~T14=30 min interval for 7 hours (1st day); TT1~TT14=30 min interval for 7 hours (2nd day); TTT1~TTT14=30 min interval for 7 hours (3rd day).

Notes

This manuscript is based on a part of the first author's master's thesis from Eulji University.

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2015R1A1A3A04001441).

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