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Wyszukujesz frazę "Reinertsen, R. E." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Offshore Fleet Workers and the Circadian Adaptation of Core Body Temperature, Blood Pressure and Heart Rate to 12-h Shifts: A Field Study
Autorzy:
Hansen, J. H.
Geving, I. H.
Reinertsen, R. E.
Powiązania:
https://bibliotekanauki.pl/articles/91164.pdf
Data publikacji:
2010
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
offshore fleet
circadian rhythms
blood pressure
heart rate
core temperature
Opis:
Objectives. The aim of this study was to investigate the circadian adaptation of tcr (core body temperature), BP (blood pressure), HR (heart rate) and subjective sleep quality after 7 days of working 12-h night shifts in offshore fleet workers. Methods. Night workers (N = 7) (18:00–6:00) and day workers (N = 7) (6:00–18:00) were recruited from a Norwegian offshore company operating in the North Sea. We measured tcr, BP and HR on days 1 and 7. Results. An increase of 0.6 oC (p = .03) was observed within the group of night workers from day 1 to day 7. Between the night and day workers there was a significant difference of 0.6 oC from day 1 to day 7 (p = .01). Sleep latency and sleep length also showed significant differences between the groups (p = .01 and p = .04). There was an interaction effect in tiredness during the shift (p = .02). Conclusion. The significant increase in tcr indicates an adaptation in the night workers to the new working schedule, and the extended working hours and sleep deprivation are hypothesized to be the main cause of the increased tcr. Light exposure, altered pattern of food availability and physical activity are likely to have contributed as well. Subjective sleep quality showed inconclusive results.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2010, 16, 4; 487-496
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance on a Work-Simulating Firefighter Test Versus Approved Laboratory Tests for Firefighters and Applicants
Autorzy:
Von Heimburg, E.
Medbo, J. I.
Sandsund, M.
Reinertsen, R. E.
Powiązania:
https://bibliotekanauki.pl/articles/90966.pdf
Data publikacji:
2013
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
endurance
fire fighting
gender
blood lactate concentration
VO2
strength tests
straż pożarna
wiek
wytrzymałość zmęczeniowa
test umiejętnościowy
strażak
doświadczenie zawodowe
Opis:
Aim. Firefighters must meet minimum physical demands. The Norwegian Labour Inspection Authority (NLIA) has approved a standardised treadmill walking test and 3 simple strength tests for smoke divers. The results of the Trondheim test were compared with those of the NLIA tests taking into account possible effects of age, experience level and gender. Methods. Four groups of participants took part in the tests: 19 young experienced firefighters, 24 senior male firefighters and inexperienced applicants, 12 male and 8 female. Results. Oxygen uptake (VO2) at exhaustion rose linearly by the duration of the treadmill test. Time spent on the Trondheim test was closely related to performance time and peak VO2 on the treadmill test. Senior experienced firefighters did not perform better than equally fit young applicants. However, female applicants performed poorer on the Trondheim test than on the treadmill test. Performance on the Trondheim test was not closely related to muscle strength beyond a minimum. Conclusion. Firefighters completing the Trondheim test in under 19 min fit the requirements of the NLIA treadmill test. The Trondheim test can be used as an alternative to the NLIA tests for testing aerobic fitness but not for muscular strength. Women’s result of the Trondheim test were poorer than the results of the NLIA treadmill test, probably because of their lower body mass.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2013, 19, 2; 227-243
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimizing the Performance of Phase-Change Materials in Personal Protective Clothing Systems
Autorzy:
Reinertsen, R. E.
Ferevik, H.
Holbo, K.
Nesbakken, R.
Reitan, J.
Royset, A.
Le Thi, M. S.
Powiązania:
https://bibliotekanauki.pl/articles/90712.pdf
Data publikacji:
2008
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
phase change materials (PCMs)
protective clothing
thermal stress
Opis:
Phase-change materials (PCM) can be used to reduce thermal stress and improve thermal comfort for workers wearing protective clothing. The aim of this study was to investigate the effect of PCM in protective clothing used in simulated work situations. We hypothesized that it would be possible to optimize cooling performance with a design that focuses on careful positioning of PCM, minimizing total insulation and facilitating moisture transport. Thermal stress and thermal comfort were estimated through measurement of body heat production, body temperatures, sweat production, relative humidity in clothing and subjective ratings of thermal comfort, thermal sensitivity and perception of wetness. Experiments were carried out using 2 types of PCM, the crystalline dehydrate of sodium sulphate and microcapsules in fabrics. The results of 1 field and 2 laboratory experimental series were conclusive in that reduced thermal stress and improved thermal comfort were related to the amount and distribution of PCM, reduced sweat production and adequate transport of moisture.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2008, 14, 1; 43-53
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Manikin Measurements - Exact or Not?
Autorzy:
Anttonen, H.
Niskanen, J.
Meinander, H.
Bartels, V.
Kuklane, K.
Reinertsen, R. E.
Varieras, S.
Sołtyński, K.
Powiązania:
https://bibliotekanauki.pl/articles/90301.pdf
Data publikacji:
2004
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
protective clothing
thermal insulation
cold protection
calculation method
izolacja cieplna
odzież ochronna
środowisko cieplne
ochrona przed zimnem
manekin termiczny
Opis:
According to the European prestandard ENV 342:1998 [1], the thermal insulation of cold-protective clothing is measured with a thermal manikin. Systematic studies on the reproducibility of the values, measured with different types of clothing on the commonly used standing and walking manikins, have not been reported in the literature. Over 300 measurements were done in 8 different European laboratories. The reproducibility of the thermal insulation test results was good. The coefficient of variation was lower than 8%. The measured clothing should fit the manikin precisely, because poorly fitting clothing gave an error in the results. The correlation between parallel and serial insulation values was excellent and parallel values were about 20% lower than serial ones. The influence of ambient conditions was critical only in the case of air velocity. The reproducibility of thermal insulation test results in a single laboratory was good, and the variation was lower than 3%.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2004, 10, 3; 291-300
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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