Fatigue and Sleep Among Employees With Prospective Increase in Work Time Control: A 1-Year Observational Study With Objective Assessment

This observational study aimed to determine how 1-year changes in work time control (WTC) have an impact upon objectively measured fatigue and sleep among employees. Thirty-nine employees were divided into two groups according to whether or not their WTC increased from baseline to 1 year later. Psyc...

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Bibliographic Details
Published inJournal of occupational and environmental medicine Vol. 58; no. 11; p. 1066
Main Authors Kubo, Tomohide, Takahashi, Masaya, Liu, Xinxin, Ikeda, Hiroki, Togo, Fumiharu, Shimazu, Akihito, Tanaka, Katsutoshi, Kamata, Naoki, Kubo, Yoshiko, Uesugi, Junko
Format Journal Article
LanguageEnglish
Published United States 01.11.2016
Subjects
Actigraphy
Adult
Fatigue
Female
Humans
Male
Middle Aged
Prospective Studies
Psychomotor Performance
Sleep
Sleep Deprivation
Work Schedule Tolerance
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Summary:This observational study aimed to determine how 1-year changes in work time control (WTC) have an impact upon objectively measured fatigue and sleep among employees. Thirty-nine employees were divided into two groups according to whether or not their WTC increased from baseline to 1 year later. Psychomotor vigilance task (PVT) and wrist actigraphy were used to objectively measure fatigue and sleep, respectively. Self-reported outcomes were also measured. The increased WTC group showed gradual improvements in PVT performance and sleep quality over the course of the follow-up period compared with the not-increased WTC group. Between-group differences were statistically significant for PVT lapses and tended to be significant for PVT speed after 1 year. A progressive increase in WTC could play a crucial role in reducing fatigue and promoting sleep among employees.
ISSN:1536-5948
DOI:10.1097/JOM.0000000000000858