@article{ref1,
title="A blue-enriched light intervention counteracts the alertness decrement among mine workers on extended 12-hour night shift periods",
journal="Journal of Occupational and Environmental Medicine",
year="2023",
author="Hébert, Marc and Lavigne, Andrée-Anne and Auclair, Julie and Martin, Jeanne-Sophie and Francis, Kim and Dumoulin Gagnon, Justine and Dubois, Marc-André and Laberge, Luc",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="OBJECTIVE: Assess whether a blue-enriched light intervention improves nocturnal alertness and daytime sleep of night workers. <br><br>METHODS: Thirteen miners performing 12-hour night shifts for 12 consecutives nights were exposed to a baseline and a blue-enriched light condition. All subjects wore an actigraph and completed a Psychomotor Vigilance Task at the beginning and at the end of each shift. Data was analyzed with linear mixed models. <br><br>RESULTS: In the blue-enriched light condition, the daily increase in median RT, mean RT, slowest 10% of RT, and fastest 10% of RT was lower than that observed in the baseline condition between day 1 and 12 (p ≤ 0.05). <br><br>CONCLUSIONS: The addition of blue-enriched light during a long period of extended night shifts counteracts most of the daily decline in nocturnal alertness observed in the standard lighting condition, irrespectively of sleep duration and sleep efficiency.<p /> <p>Language: en</p>",
language="en",
issn="1076-2752",
doi="10.1097/JOM.0000000000002849",
url="http://dx.doi.org/10.1097/JOM.0000000000002849"
}