Impairment of perceptual and motor abilities at the end of a night shift is greater in nurses working fast rotating shifts

Chang, Yu San; Wu, Yu; Hsu, Chia‐Yi; Tang, Shu Hui; Li, Yang; Su, Shu

doi:10.1016/j.sleep.2011.03.018

Cited by 53 publications

(61 citation statements)

References 16 publications

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“…Diminished executive functioning and maladaptive affective changes are among the psychological detriments associated with typical shift work regimes. Studies examining safety sensitive professions specifically have revealed that those employed as physicians, policemen, nurses, and pilots that are exposed to chronic “shift lag” perform significantly worse on measures of cognition and work related fatigue [14–16]. In addition to the cognitive effects experienced by shift-workers there is evidence to suggest that shift-lag may increase the risk of morbid affective change.…”

Section: Introductionmentioning

confidence: 99%

Circadian and behavioural responses to shift work-like schedules of light/dark in the mouse

McGowan

Coogan

2013

J Mol Psychiatry

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BackgroundDisruption of circadian rhythms is associated with several deleterious health consequences and cognitive impairment. It is estimated that as many as one in five workers are exposed to this risk factor due to experiencing some degree of chronodisruption by way of recurring patterns of shift work. It is not presently clear therefore how efficiently the mammalian circadian system entrains to alternative light/dark cycles such as those found in shift work schedules.MethodsThe present study examines male CD-1 mice exposed to three different paradigms of rapidly rotating shift work-like light/dark manipulations compared to control animals maintained on a standard 12:12 h light/dark cycle.ResultsAnalysis of circadian patterns of behaviour under such conditions reveals that for fast rotating schedules of light/dark there is minimal circadian entrainment. Further, when placed in constant conditions after a period under the “shift work” lighting conditions there were changes to circadian period associated with the shift work schedules. In contrast to previous studies the shift work-like conditions did not produce changes in animal body-weight. Behavioural testing suggests possible anxiogenic and hyperactive outcomes dependent on rotation speed as animals displayed open field thigmotaxis and hyperlocomotion.ConclusionThese results indicate that exposure to alternating patterns of light and dark as experienced by millions of shift workers may produce long-lasting changes in both mammalian circadian and neurobehavioural systems.

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Section: Introductionmentioning

confidence: 99%

Circadian and behavioural responses to shift work-like schedules of light/dark in the mouse

McGowan

Coogan

2013

J Mol Psychiatry

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“…Concerning the levels of education of the nurses, the results show that about half of the nurses have diploma in nursing which means two years after secondary school. This result is supported by Al-Ameri [16] but this result is not supported by American and European studies because the standard of level of education for nurses is Bachelor in nursing level [21][22][23]. More than half of the nurses were married; this situation is considered traditional commitment in Iraq to marry at early years of age, in addition the majority of the participants is 20-39 years old so it is usual to find this high percentage of married nurses [16].…”

Section: Resultsmentioning

confidence: 88%

Night Shift and its Impact upon the Quality of Life of Nurses Working at the Teaching Hospitals of the Medical City Complex in Baghdad City, Iraq

Al-Ameri¹

2017

J Nurs Care

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“…This finding also confirms the better adaptation of workers in 7 N7D7O than in 4 N4D4O shift pattern. The peak of night fatigue occurs at 3 a.m. [9] and the maximum amount of melatonin is secreted in normal people (non-shift workers) at this time [13]. Moreover, people in the shift pattern with four consecutive nights suffer more from sleepiness than in shift patterns with seven consecutive nights of work.…”

Section: Discussionmentioning

confidence: 99%

“…It has been stated that the increase in the number of consecutive night shifts leads to changes in the circadian phase from night to day and improves people’s performance and alertness at night [3]. In one study, it was demonstrated that the adaptation to night work (change of circadian phase from night to day) occurs faster in the shift patterns with slow rotation (with seven or more consecutive night shifts) than in ones with quick rotation [9]. In addition, a comparison between the shift patterns with two, three, and four consecutive night shifts showed that people who worked four consecutive nights had better performance and were more alert than those who were working in two and three consecutive night shifts [910].…”

Section: Introductionmentioning

confidence: 99%

“…In one study, it was demonstrated that the adaptation to night work (change of circadian phase from night to day) occurs faster in the shift patterns with slow rotation (with seven or more consecutive night shifts) than in ones with quick rotation [9]. In addition, a comparison between the shift patterns with two, three, and four consecutive night shifts showed that people who worked four consecutive nights had better performance and were more alert than those who were working in two and three consecutive night shifts [910]. On the other hand, studies have indicated that larger number of consecutive night shifts enhances the likelihood of accidents and reduces cognitive performance [11].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Melatonin Profile and Alertness of Firefighters with Different Work Schedules

Kazemi

Hemmatjo

2018

Journal of Circadian Rhythms

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Introduction:A two-shift work schedule with different rotations is common among firefighters in Iranian petrochemical companies. This study compared salivary melatonin and sleepiness on the last night before turning to day shift at 19:00, 23:00, 3:00, and 7:00 among petrochemical firefighters (PFFs) working seven and four consecutive night shifts.Methods:Sixty four PFFs working in the petrochemical industry were selected. To measure melatonin, saliva samples were taken, whereas the KSS index was used to assess sleepiness. Chi-square and independent samples t-test were carried out to analyze the data, and generalized linear model (GLM) was employed to determine the effect of confounding factors such as lighting and caffeine.Results:The levels of melatonin at 3:00 and 7:00, and the overall changes during the shift in the two shift patterns under the study were different (P < 0.05). Sleepiness was significantly different only at 3:00 in the two studied shift patterns, while the effects of lighting and caffeine on melatonin changes were not significant (P > 0.05).Conclusion:It seems that a slow shift rotation is better because it reduces the secretion of melatonin (hence reducing sleepiness during the night) and changes the peak of melatonin secretion to the daytime, which is a sign of adaptation.

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Impairment of perceptual and motor abilities at the end of a night shift is greater in nurses working fast rotating shifts

Cited by 53 publications

References 16 publications

Circadian and behavioural responses to shift work-like schedules of light/dark in the mouse

Circadian and behavioural responses to shift work-like schedules of light/dark in the mouse

Night Shift and its Impact upon the Quality of Life of Nurses Working at the Teaching Hospitals of the Medical City Complex in Baghdad City, Iraq

Comparison of Melatonin Profile and Alertness of Firefighters with Different Work Schedules

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