@article{ref1,
title="Fatigue and sleep among employees with prospective increase in work time control: a 1-year observational study with objective assessment",
journal="Journal of Occupational and Environmental Medicine",
year="2016",
author="Kubo, Tomohide and Takahashi, Masaya and Liu, Xinxin and Ikeda, Hiroki and Togo, Fumiharu and Shimazu, Akihito and Tanaka, Katsutoshi and Kamata, Naoki and Kubo, Yoshiko and Uesugi, Junko",
volume="58",
number="11",
pages="1066-1072",
abstract="OBJECTIVES: 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. <br><br>METHODS: 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. <br><br>RESULTS: 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. <br><br>CONCLUSIONS: A progressive increase in WTC could play a crucial role in reducing fatigue and promoting sleep among employees.<p /> <p>Language: en</p>",
language="en",
issn="1076-2752",
doi="10.1097/JOM.0000000000000858",
url="http://dx.doi.org/10.1097/JOM.0000000000000858"
}