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http://dx.doi.org/10.15207/JKCS.2021.12.7.317

Effects of Light Therapy on Stress, Depression, Quality of Sleep and Quality of Life in Middle-Aged Women: A Randomized Controlled Trial  

Jang, Mi-Kyeong (Department of Nursing, Gumi University)
Hur, Myung-Haeng (Department of Nursing, Eulji University)
Publication Information
Journal of the Korea Convergence Society / v.12, no.7, 2021 , pp. 317-327 More about this Journal
Abstract
This study is a randomized controlled trial to compare the effects of light therapy on stress, depression, sleep quality and quality of life in middle-aged women. The participants of this study were 56 middle-aged women who worked at the same office. Data collection period was from August 26 to September 13 for the control group and from September 16 to October 4 for the experimental group. Subjective stress, depression, quality of sleep and quality of life in middle-aged women were measured by Numeric Rating Scale (NRS), Center for Epidemiology studies of scale (CES-D), Verran & Synder-Halpern Sleep scale (VHS) and WHO Quality of Life Scale Abbreviated Version (WHOQOL-BREF). Stress index was measured using a Canopy9 RSA (IEMBIO, Gangwondo, Korea) equipment. The data were analyzed by mean, standard deviation, real number and percentage, χ2-test, t-test, repeated measures ANOVA and ANCOVA using IBM SPSS Statistics version 25.0. The results showed that the experimental group applying light therapy had significantly lower subjective stress (F=6.30, p<.001) and higher quality of life (F=2.80, p=.049) than the control group, There was no difference in objective stress index, depression, and sleep quality. As a result, light therapy is partially effective in subjective stress and quality of life for middle-aged women, and further research is needed on middle-aged women working in work environments with limited light exposure.
Keywords
Light therapy; Stress; Depression; Sleep; Quality of Life;
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