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Wyszukujesz frazę "alertness" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
The Effects of the Level of Alertness During the Rest Period on Subsequent Performance
Autorzy:
Hirose, A.
Nagasaka, A.
Powiązania:
https://bibliotekanauki.pl/articles/90741.pdf
Data publikacji:
2003
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
alertness
rest
EEG
sleep
stages
sleep inertia
fizjologia pracy
odpoczynek po wysiłku
sen
zagrożenia zdrowia
gotowość do pracy
Opis:
The aim of this study was to examine how to take an effective rest to prevent a decline in alertness at work. The relationship between alertness during the rest period and subsequent task performance were investigated. The electroencephalogram (EEG) during the rest period was classified into 3 types, and these types had a significant effect on performance after the rest period. Type 1 (increasing in theta, alpha 2, and beta 1 power) was the best one for carrying out the task, whereas performance gradually declined in Type 3 (no change in EEG activity). In the case of Type 1, the method that would relieve sleep inertia bad a more positive impact on performance after the rest period.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2003, 9, 4; 479-490
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Bright Light on Physiological Circadian Rhythms and Subjective Alertness of Shift Work Nurses in Iran
Autorzy:
Kakooei, H.
Ardakani, Z. Z.
Ayattollahi, M. T.
Karimian, M.
Saraji, G. B.
Owji, A. A.
Powiązania:
https://bibliotekanauki.pl/articles/90524.pdf
Data publikacji:
2010
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
circadian rhythms
shift work
nurse
bright light
alertness
melatonin
cortisol
body temperature
Opis:
In this study, the effects of bright light (BL) on the rhythms in body temperature, plasma melatonin, plasma cortisol and subjective alertness, in 34 shift work nurses at a university hospital were assessed. They were exposed to very BL (4 500 lx) during 2 breaks (21:15–22:00 and 3:15–4:00) or dim light (300 lx). The subjects were studied under 24 h of realistic conditions during which their plasma cortisol and melatonin were measured at 3-h intervals; their body temperature was also measured during and after night shift work. Subjective alertness was evaluated with the Karolinska sleepiness scale. Administration of BL significantly suppressed night-time melatonin levels. A one-way ANOVA revealed that BL tended to increase cortisol levels and body temperature and significantly improved alertness. These results demonstrate that photic stimulation in a hospital setting can have a powerful influence on the adjustment of the circadian system.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2010, 16, 4; 477-485
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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