The influence of ship movements on the energy expenditure of fishermen. A study during a North Sea Voyage in calm weather

Tomas Breidahl, Michael Christensen, Jens Peter Johansen, Jørgen Riis Jepsen, Øyvind Omland

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

Resumé

Objective: Former studies of professional fishing activities has indicated that movements of a ship, in itself, may increase the energy expenditure in addition to the traditional work carried out by fishermen. We have studied the effects of expo- sure to the ship’s movement during calm weather by examining the crude relation between the ship’s movement and the energy expenditure of the fishermen, thus ignoring the various tasks undertaken on board.
Methods: Four fishermen on two contemporary steel trawlers were recruited and participated during the whole study. Activities and health conditions were recorded once an hour in four days. Estimation of energy expenditure were done with a body monitoring system (SenseWear Pro 3) carried as an armband placed on the right upper arm. Measurements of sea movements were obtained by a gyroscope placed in the vessels wheelhouse during fishing expeditions in the North Sea off the coast of Bergen. The data were analysed by linear regression.
results: The exposure monitored in calm weather conditions was small for all meas- urements of heeling and pitch being less than 10o.for both vessels. However, the fish- ermen’s energy expenditure was influenced by these minor sea motions. Trends were seen in the individual graphs with increasing energy expenditure at higher exposures.
Conclusion: Our data suggests that even the heel and pitch in calm weather have an impact on the fishermen by increasing their energy consumption. This study has demonstrated the feasibility of the applied methods that should be repeated with larger samples and in rough weather.
OriginalsprogEngelsk
TidsskriftAnnals of Occupational Hygiene
Vol/bind59
Udgave nummerSuppl. 1
Sider (fra-til)27
Antal sider1
ISSN2398-7308
DOI
StatusUdgivet - 2015
Begivenhed10th International Scientific Conference of the International Occupational Hygiene Association - London Metropole Hotel, London, Storbritannien
Varighed: 25. apr. 201530. apr. 2015

Konference

Konference10th International Scientific Conference of the International Occupational Hygiene Association
LokationLondon Metropole Hotel
LandStorbritannien
ByLondon
Periode25/04/201530/04/2015

Citer dette

Breidahl, Tomas ; Christensen, Michael ; Johansen, Jens Peter ; Jepsen, Jørgen Riis ; Omland, Øyvind. / The influence of ship movements on the energy expenditure of fishermen. A study during a North Sea Voyage in calm weather. I: Annals of Occupational Hygiene. 2015 ; Bind 59, Nr. Suppl. 1 . s. 27.
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abstract = "Objective: Former studies of professional fishing activities has indicated that movements of a ship, in itself, may increase the energy expenditure in addition to the traditional work carried out by fishermen. We have studied the effects of expo- sure to the ship’s movement during calm weather by examining the crude relation between the ship’s movement and the energy expenditure of the fishermen, thus ignoring the various tasks undertaken on board.Methods: Four fishermen on two contemporary steel trawlers were recruited and participated during the whole study. Activities and health conditions were recorded once an hour in four days. Estimation of energy expenditure were done with a body monitoring system (SenseWear Pro 3) carried as an armband placed on the right upper arm. Measurements of sea movements were obtained by a gyroscope placed in the vessels wheelhouse during fishing expeditions in the North Sea off the coast of Bergen. The data were analysed by linear regression.results: The exposure monitored in calm weather conditions was small for all meas- urements of heeling and pitch being less than 10o.for both vessels. However, the fish- ermen’s energy expenditure was influenced by these minor sea motions. Trends were seen in the individual graphs with increasing energy expenditure at higher exposures.Conclusion: Our data suggests that even the heel and pitch in calm weather have an impact on the fishermen by increasing their energy consumption. This study has demonstrated the feasibility of the applied methods that should be repeated with larger samples and in rough weather.",
author = "Tomas Breidahl and Michael Christensen and Johansen, {Jens Peter} and Jepsen, {J{\o}rgen Riis} and {\O}yvind Omland",
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The influence of ship movements on the energy expenditure of fishermen. A study during a North Sea Voyage in calm weather. / Breidahl, Tomas; Christensen, Michael; Johansen, Jens Peter; Jepsen, Jørgen Riis; Omland, Øyvind.

I: Annals of Occupational Hygiene, Bind 59, Nr. Suppl. 1 , 2015, s. 27.

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

TY - ABST

T1 - The influence of ship movements on the energy expenditure of fishermen. A study during a North Sea Voyage in calm weather

AU - Breidahl, Tomas

AU - Christensen, Michael

AU - Johansen, Jens Peter

AU - Jepsen, Jørgen Riis

AU - Omland, Øyvind

PY - 2015

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N2 - Objective: Former studies of professional fishing activities has indicated that movements of a ship, in itself, may increase the energy expenditure in addition to the traditional work carried out by fishermen. We have studied the effects of expo- sure to the ship’s movement during calm weather by examining the crude relation between the ship’s movement and the energy expenditure of the fishermen, thus ignoring the various tasks undertaken on board.Methods: Four fishermen on two contemporary steel trawlers were recruited and participated during the whole study. Activities and health conditions were recorded once an hour in four days. Estimation of energy expenditure were done with a body monitoring system (SenseWear Pro 3) carried as an armband placed on the right upper arm. Measurements of sea movements were obtained by a gyroscope placed in the vessels wheelhouse during fishing expeditions in the North Sea off the coast of Bergen. The data were analysed by linear regression.results: The exposure monitored in calm weather conditions was small for all meas- urements of heeling and pitch being less than 10o.for both vessels. However, the fish- ermen’s energy expenditure was influenced by these minor sea motions. Trends were seen in the individual graphs with increasing energy expenditure at higher exposures.Conclusion: Our data suggests that even the heel and pitch in calm weather have an impact on the fishermen by increasing their energy consumption. This study has demonstrated the feasibility of the applied methods that should be repeated with larger samples and in rough weather.

AB - Objective: Former studies of professional fishing activities has indicated that movements of a ship, in itself, may increase the energy expenditure in addition to the traditional work carried out by fishermen. We have studied the effects of expo- sure to the ship’s movement during calm weather by examining the crude relation between the ship’s movement and the energy expenditure of the fishermen, thus ignoring the various tasks undertaken on board.Methods: Four fishermen on two contemporary steel trawlers were recruited and participated during the whole study. Activities and health conditions were recorded once an hour in four days. Estimation of energy expenditure were done with a body monitoring system (SenseWear Pro 3) carried as an armband placed on the right upper arm. Measurements of sea movements were obtained by a gyroscope placed in the vessels wheelhouse during fishing expeditions in the North Sea off the coast of Bergen. The data were analysed by linear regression.results: The exposure monitored in calm weather conditions was small for all meas- urements of heeling and pitch being less than 10o.for both vessels. However, the fish- ermen’s energy expenditure was influenced by these minor sea motions. Trends were seen in the individual graphs with increasing energy expenditure at higher exposures.Conclusion: Our data suggests that even the heel and pitch in calm weather have an impact on the fishermen by increasing their energy consumption. This study has demonstrated the feasibility of the applied methods that should be repeated with larger samples and in rough weather.

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DO - 10.1093/annhyg/meu119

M3 - Conference abstract in journal

VL - 59

SP - 27

JO - Annals of Occupational Hygiene

JF - Annals of Occupational Hygiene

SN - 2398-7308

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