open access
The effect of hardiness on symptoms of insomnia during a naval mission
Affiliations- Department of Psychosocial Science, Faculty of Psychology, University of Bergen, Norway
- University of Bergen
- Norwegian Navy, Norway
open access
Abstract
Background: Sleep is increasingly being recognised as important for the health and well-being of sailors. The aim of the current study is to investigate the relationship between hardiness and reported insomnia-symptoms in a maritime military setting during a 4-month counter piracy naval mission in the Gulf of Aden.
Materials and methods: A sample of 281 officers, sailors, and enlisted personnel were measured on levels of hardiness before the mission. The participants were split into low and high hardiness groups based on the group level mean. Insomnia-symptoms were measured before, midway and at the end of the mission.
Results: The results showed a significant main effect of time and a significant main effect of hardiness. The crew experienced the most insomnia symptoms in the middle of the mission and the high hardy group experienced less insomnia symptoms, in total, during the mission. There was also found a significant interaction effect of time and hardiness. The high hardiness group experienced less insomnia symptoms before and towards the end of the mission.
Conclusions: The results indicate that high levels of hardiness may be a protective factor between the stressors of a naval mission and symptoms of insomnia.
Abstract
Background: Sleep is increasingly being recognised as important for the health and well-being of sailors. The aim of the current study is to investigate the relationship between hardiness and reported insomnia-symptoms in a maritime military setting during a 4-month counter piracy naval mission in the Gulf of Aden.
Materials and methods: A sample of 281 officers, sailors, and enlisted personnel were measured on levels of hardiness before the mission. The participants were split into low and high hardiness groups based on the group level mean. Insomnia-symptoms were measured before, midway and at the end of the mission.
Results: The results showed a significant main effect of time and a significant main effect of hardiness. The crew experienced the most insomnia symptoms in the middle of the mission and the high hardy group experienced less insomnia symptoms, in total, during the mission. There was also found a significant interaction effect of time and hardiness. The high hardiness group experienced less insomnia symptoms before and towards the end of the mission.
Conclusions: The results indicate that high levels of hardiness may be a protective factor between the stressors of a naval mission and symptoms of insomnia.
Keywords
hardiness, resilience, insomnia, sleep, health, navy, vessel
About this articleTitle
The effect of hardiness on symptoms of insomnia during a naval mission
Journal
Issue
Article type
Original article
Pages
147-152
Published online
2017-09-27
Page views
1924
Article views/downloads
1891
DOI
Pubmed
Bibliographic record
IMH 2017;68(3):147-152.
Keywords
hardiness
resilience
insomnia
sleep
health
navy
vessel
Authors
Morten Nordmo
Sigurd William Hystad
Sverre Sanden
Bjørn Helge Johnsen
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