Work at sea: a study of sleep, and of circadian rhythms in physiological and psychological functions, in watchkeepers on merchant vessels

Wp, Colquhoun; Rutenfranz, J.; Goethe, H; Neidhart, B.; Condon, R.; Plett, R; Knauth, Peter

doi:10.1007/bf00405665

Cited by 24 publications

(13 citation statements)

References 13 publications

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“…Almost all seamen work in 8 h shift: four hours in watch keeping and eighthour rest, or 6 h shift: six hours in watch keeping and rest. An exception is the captain seamen who don't have watch keeping and are normally engaged in daywork 6,7) . On trading vessels the captain has to be awake to work, and deal with whatever happens during the night 8) .…”

Section: Discussionmentioning

confidence: 99%

The Tendency of Diseases among Seamen during the Last Fifteen Years in Japan

et al. 2006

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Compared to workers on land, seamen working on the ocean are given only limited disease treatment. The aim of this paper is to clarify the actual condition of diseases among such seamen in an effort to improve measures that promote their health. We analyzed 51,641 cases of diseases that were reported to the Ministry of Land, Infrastructure and Transport from 1986 to 2000. The most prevalent diseases included disorders of the digestive system, followed by those of the musculoskeletal and the circulatory systems. The proportions of the three disease types were shown to vary by the type of work, ship, and occupation. One of the reasons for the variation in incidence between type of work and ship might result from differences in the voyage period in the given year. In explaining the varied incidences between occupations we hypothesize that differences in work systems and contents may be important variables to consider. It will be necessary to clarify the lifestyle and living environment of seamen to suggest appropriate measures for combating diseases prevalent in this population.

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Section: Discussionmentioning

confidence: 99%

The Tendency of Diseases among Seamen during the Last Fifteen Years in Japan

et al. 2006

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“…Our findings showed that time-related PSFs such as suddenness of onset, time available, and task criticality all happened in more than one third of the accidents. This suggests that there is a difference between navigation on small naval vessels and large merchant ships, where monitoring constitutes a larger part of the task (Colquhoun et al, 1988).…”

Section: Psfsmentioning

confidence: 99%

Performance-Shaping Factors Associated With Navigation Accidents in the Royal Norwegian Navy

Gould

Røed²,

Koefoed³

et al. 2006

Military Psychology

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This study examined the presence of performance-shaping factors (PSFs) in investigation reports following 35 navigation accidents in the Royal Norwegian Navy between 1990 and 2005. This was done to provide an overview of the situational factors present at the time of the accidents, which were related to the human, task, system, and environment. PSFs are defined as any factors that influence the likelihood of an error occurring. Factors related to task requirements and individual cognitive characteristics were most common, followed by operational characteristics of the system. Eight PSF clusters were found, indicating a pattern in accident circumstances. Possible measures for improving safety and performance include training, changes in task organization, and improved bridge systems.

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“…We can observe the adoption of the following approaches: self-report measures [24], measures of physiological processes, a combination of physiological, behavioural and self-report measures [25].…”

Section: The Fatigue Factor In the Human Resources Management On Boarmentioning

confidence: 99%

“…The main cause identified for fatigue of seafarers is related to the sleep patterns, that is the quality and quantity of sleep [25]. More specifically some authors have identified some key features related to fatigue that impact on the quality and quantity of sleep, such as fragmented (and therefore poorer quality) sleep, having to sleep at physiologically inappropriate times, insufficient breaks for resting between shifts, long work days, and so on [26].…”

Section: The Fatigue Factor In the Human Resources Management On Boarmentioning

confidence: 99%

Regulations and Measurement of Human Capital Resources: The Impact of MLC in the Seafarers Control and Management Systems

Assunta

Varriale²,

Alvino³

2015

JHRM

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This paper aims to verify the role of the managerial control systems in the measurement of the factors that may have a negative impact on the job performance of the human resources working on board ships. More specifically, we investigate the main causes, such as social isolation, boredom, fatigue, lack of social recognition, conflicts among the member of the crews and so on, affecting the efficiency and effectiveness of the seafarers' job on board and consequently the performance of the ships. In the last years the international regulation about the work on board ships is becoming over more relevant in order to ensure the best security and welfare conditions of the workers and, more in general, of the maritime crews. In addition to the international conventions SOLAS (Safety of Life at Sea) and STCW (Standards of Training, Certification and Watch keeping for Seafarers), in 2006 it has been introduced the Maritime Labour Convention (MLC) no. 186, adopted in Geneva on 23 rd Feb by the 94 0 session, it introduced into force on Aug 20 th 2013. This Convention establishes several rules in order to ensure the acceptability between governments, ship owners and seafarers about the principles of safe and healthy work fixed in the Titles. This study, within a wider research project, aims to analyze, through a qualitative approach, on one side, the impact of the MLC on the Italian legislative context, and, on the other side, the fatigue factor in the managerial control and human resources literature. Therefore, this study focuses on the Title "health protection, medical care, welfare and social security" indicated by MLC, and thanks to the support of some shipping companies, it supplies a set of key performance indicators to measure the fatigue causes. Finally, this paper provides interesting insights on the managerial control system adoptable by the shipping companies in the recognition of the MLC.

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Work at sea: a study of sleep, and of circadian rhythms in physiological and psychological functions, in watchkeepers on merchant vessels

Cited by 24 publications

References 13 publications

The Tendency of Diseases among Seamen during the Last Fifteen Years in Japan

The Tendency of Diseases among Seamen during the Last Fifteen Years in Japan

Performance-Shaping Factors Associated With Navigation Accidents in the Royal Norwegian Navy

Regulations and Measurement of Human Capital Resources: The Impact of MLC in the Seafarers Control and Management Systems

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