| Autor: |
Helmhout PH; Training Medicine and Training Physiology, Directory of Personnel, Army Command, Royal Netherlands Army, P.O. Box 90004, 3509 AA Utrecht, The Netherlands., Timmerman S; Radboudumc Health Academy, Radboud University, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands., van Drongelen A; Safety and Human Performance, Royal NLR-Netherlands Aerospace Centre, P.O. Box 90502, 1006 BM Amsterdam, The Netherlands., Bakker EWP; Department of Epidemiology and Data Science, Division EPM, University Medical Center Amsterdam, P.O. Box 22600, 1100 DD Amsterdam, The Netherlands. |
| Jazyk: |
angličtina |
| Zdroj: |
Clocks & sleep [Clocks Sleep] 2022 Nov 24; Vol. 4 (4), pp. 675-687. Date of Electronic Publication: 2022 Nov 24. |
| DOI: |
10.3390/clockssleep4040051 |
| Abstrakt: |
This study aimed to evaluate the effectiveness of glasses that emit blue light in reducing the need for recovery, general fatigue, and stress levels in security guards who work night shifts. Light manipulation is seen as a promising strategy to mitigate complaints related to shift work, such as sleepiness and impaired cognitive performance. In a randomized controlled cross-over study design, 86 Dutch security guards used light-emitting glasses (exposure duration: 30 min) during night shifts in a five week period versus a five week control period without glasses. Measurements (Need for Recovery Scale; Checklist Individual Strength; stress level assessed by a fitness tracker) were performed at baseline, at five weeks, and again at 11 weeks. The chronotype was measured at baseline as a potential covariate. A mixed model for repeated measure analyses showed no significant reduction in the need for recovery, nor a reduction in general fatigue scores, during the intervention period. Paired Samples T-Test analyses showed no significant changes in stress levels for the intervention period. Conclusively, blue light exposure using light-emitting glasses for security guards during night shifts showed no directly measurable effect on the reduced need for recovery, overall fatigue, and stress levels. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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