@article{ref1,
title="Acute effects of a simulated quick return on subjective sleepiness, mood, and cognitive performance: a laboratory crossover controlled trial",
journal="Chronobiology international",
year="2024",
author="Holmelid, Øystein and Harris, Anette and Pallesen, Stale and Bjorvatn, Bjørn and Vedaa, Øystein and Waage, Siri and Nielsen, Morten Birkeland and Djupedal, Ingebjørg Louise Rockwell and Sunde, Erlend",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="Sleep loss due to short time off between shifts has been proposed as a mechanism contributing to impaired functioning in occupational settings. This laboratory crossover trial (ClinicalTrials.gov identifier: NCT05162105, N = 66) compared subjective sleepiness, mood, and cognitive performance on a day shift after an evening shift with only 8 h off between shifts (quick return, QR) to a day shift after another day shift with 16 h off between shifts (control). <br><br>RESULTS indicated higher subjective sleepiness (Karolinska Sleepiness Scale) during the QR condition compared to the control condition (p < 0.001). No significant differences were found on mood (Positive and Negative Affect Schedule) and cognitive performance (Psychomotor Vigilance- and Digit Symbol Substitution Test) between the conditions. <br><br>FINDINGS of increased subjective sleepiness corroborate previous field studies. This trial is to our knowledge the first to compare mood and cognitive performance after a QR to a longer shift transition using an experimental design. Future research should explore the effects of accumulated sleep loss associated with QRs (e.g. having several QRs within a short time period) on behavioral outcomes.<p /> <p>Language: en</p>",
language="en",
issn="0742-0528",
doi="10.1080/07420528.2024.2380736",
url="http://dx.doi.org/10.1080/07420528.2024.2380736"
}