TY  - JOUR
PY  - 2024//
TI  - Acute effects of a simulated quick return on subjective sleepiness, mood, and cognitive performance: a laboratory crossover controlled trial
JO  - Chronobiology international
A1  - Holmelid, Øystein
A1  - Harris, Anette
A1  - Pallesen, Stale
A1  - Bjorvatn, Bjørn
A1  - Vedaa, Øystein
A1  - Waage, Siri
A1  - Nielsen, Morten Birkeland
A1  - Djupedal, Ingebjørg Louise Rockwell
A1  - Sunde, Erlend
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - 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>
LA  - en
SN  - 0742-0528
UR  - http://dx.doi.org/10.1080/07420528.2024.2380736
ID  - ref1
ER  -