University of Groningen
Sleep and fatigue offshore
Riethmeister, Vanessa
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Publication date: 2019
Link to publication in University of Groningen/UMCG research database
Citation for published version (APA):
Riethmeister, V. (2019). Sleep and fatigue offshore. University of Groningen.
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Propositions belonging to the PhD thesis
SLEEP AND FATIGUE OFFSHORE
1. Sleep and fatigue risk management is perceived as important for health, safety and sustainable employability by offshore workers. (this thesis) 2. Sleep debt and fatigue accumulate over two-week offshore shift
rotations. (this thesis)
3. Staying alert across each offshore day decreases with days-on-shift. (this thesis)
4. Offshore day-shift workers working 2-weeks-on/2-weeks-off offshore rotations are chronically sleep deprived. (this thesis)
5. A peak in fatigue on day 10/11 of a 14-day offshore tour indicates the existence of a third quarter phenomenon. (this thesis)
6. Spill-over effects between leave and offshore work periods exist and are characterized by an increased fatigue risk. (this thesis)
7. Subjective fatigue is a likely precursor of objective fatigue deterioration and thus a better fatigue detector than objective fatigue.
8. Manage the risk of fatigue not fatigue itself. (Dawson, 2017; Fatigue Risk Management Course)
9. Being fatigued has the same performance deteriorating effects as being drunk. [Dawson D, Reid K. Fatigue, alcohol and performance impairment. Nature. 1997;388(6639):235.]
