Napping on the night shift among nursing staff: potential benefits for workers' health

Silva-Costa, Aline; Rotenberg, Lúcia; Griep, Rosane Härter; Fischer, Frida Marina

doi:10.5935/1414-8145.20150005

Cited by 4 publications

(6 citation statements)

References 9 publications

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“…On-shift napping may contribute to the increase in the total sleep duration and also to the synchronization of the circadian rhythms of night workers, since naps taken when the circadian drive to sleep is at its highest have shorter sleep onset latencies than naps taken at other times during the day 4 . Also, in another study with nursing professionals, the efficiency of this short sleep during night work was similar to the one observed in the nighttime sleep at home during rest days 7 , although the duration and quality of these naps are usually not as adequate as the full sleep at home 4 , 7 . Moreover, agreement about the best time to nap and the duration of on-shift napping among night workers is still a challenge.…”

Section: Discussionsupporting

confidence: 60%

“…This study had some limitations. Possibly, the timing of the on-shift napping – from 0:00 a.m. to 3:00 a.m. or from 3:00 a.m. to 6:00 a.m. 7 –, which was not obtained in this study, could have influenced the results. For example, a previous study has shown that the efficiency of nighttime sleep at work is higher among those napping after 3:00 a.m., and it may be related to the levels of melatonin: maximum level of melatonin release and lower core temperature are observed approximately between 3:00 a.m. and 4:00 a.m. 7 .…”

Section: Discussionmentioning

confidence: 72%

“…Possibly, the timing of the on-shift napping – from 0:00 a.m. to 3:00 a.m. or from 3:00 a.m. to 6:00 a.m. 7 –, which was not obtained in this study, could have influenced the results. For example, a previous study has shown that the efficiency of nighttime sleep at work is higher among those napping after 3:00 a.m., and it may be related to the levels of melatonin: maximum level of melatonin release and lower core temperature are observed approximately between 3:00 a.m. and 4:00 a.m. 7 . Although napping depends on low workload, studies on nursing workers of public hospitals suggest that the practice of allowing workers to sleep during night shifts is common, with low percentages of workers reporting otherwise 7 .…”

Section: Discussionmentioning

confidence: 72%

“…For example, a previous study has shown that the efficiency of nighttime sleep at work is higher among those napping after 3:00 a.m., and it may be related to the levels of melatonin: maximum level of melatonin release and lower core temperature are observed approximately between 3:00 a.m. and 4:00 a.m. 7 . Although napping depends on low workload, studies on nursing workers of public hospitals suggest that the practice of allowing workers to sleep during night shifts is common, with low percentages of workers reporting otherwise 7 . In addition, the analyses were adjusted for potential confounding factors, but we cannot rule out the possible occurrence of residual effects or uncontrolled variables.…”

Section: Discussionmentioning

confidence: 98%

“…On-shift napping may compensate sleep loss and contribute to the synchronization of the circadian rhythms among night workers, as it occurs at a proper time from a chronobiological perspective 4 , 7 . Considering that night work has been suggested as a risk factor for obesity or weight gain 3 , we hypothesized that the negative effects of night work on body weight could be attenuated by on-shift napping.…”

Section: Introductionmentioning

confidence: 99%

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Night work and BMI: is it related to on-shift napping?

2017

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On-shift napping can benefit night workers regarding sleep loss, synchronization of circadian rhythms, and alertness. However, few studies on napping can be found in the literature focused on possible health benefits. This cross-sectional study has investigated the role of on-shift napping on the association between night work and BMI in 409 night-shift nursing professionals. The number of working nights and the years of exposure to night work were significantly associated with increased BMI levels among non-nappers, but not among nappers. Results suggest a benefit of napping for weight gain, thus subsidizing occupational health policies on the regulation of on-shift napping among nursing workers.

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Section: Discussionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Night work and BMI: is it related to on-shift napping?

2017

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On-shift naps are associated with systolic and diastolic blood pressure level among night working nursing professionals

Rotenberg

Silva-Costa

Griep

2020

Chronobiology International

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Work schedule and self-reported hypertension – the potential beneficial role of on-shift naps for night workers

Rotenberg

Silva-Costa

Vasconcellos-Silva

et al. 2016

Chronobiology International

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Data on the association between shift work and hypertension are controversial. Sleep restriction is hypothesized to be involved in this relationship. Since on-shift nap can partly compensate for sleep deprivation among night workers, this investigation is aimed at (i) comparing the prevalence of hypertension among workers considering both current and former night work, (ii) testing the association between on-shift naps and hypertension among night workers, and (iii) analyzing the influence of sleep complaints in the association between on-shift nap and hypertension. Nap was defined as a sleep episode with duration shorter than the average nighttime sleep. A cross-sectional study was performed at the 18 largest public hospitals in Rio de Janeiro, Brazil, in 2010-2011 (N = 2588 female registered nurses). Nurses were informally allowed to nap for up to three consecutive hours during working nights. Workers completed a multidimensional questionnaire including self-reported information on physician diagnosis of hypertension, napping, and sleep complaints (insomnia, diurnal sleepiness, and non-satisfactory sleep). Epidemiological and statistical treatment of data included binomial logistic regression and interaction tests. Higher chances of hypertension were observed for both current and former night workers compared with workers with no previous experience in night work, i.e. exclusive day workers (OR = 1.68; CI95% 1.22-2.33 and OR = 1.40; CI95% 1.01-1.96, respectively) after adjustment for age, race/ethnicity, physical activity, smoking, alcohol consumption, insomnia, weekly work hours, and BMI. Compared with exclusive day workers, both non-nappers and nappers were at a higher likelihood of reporting hypertension (OR = 1.93 CI95% 1.35-2.79 and OR = 1.41 CI95% 1.08-2.20, respectively). An interaction was observed between napping behavior and insomnia (p = 0.037). In the whole sample of night workers, the lower OR for nappers was confirmed when they were directly compared with non-nappers (OR = 0.76 CI95% 0.59-0.98). Analysis of night workers stratified by insomnia showed a significant reduction in OR for nappers (compared to non-nappers) only among insomniacs (OR = 0.58). Napping during night work may be a protective factor for hypertension, particularly among insomniacs. Factors related to melatonin secretion, blood pressure control, and blood pressure dipping patterns are likely to be involved in the relationship between on-shift napping and blood pressure.

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Napping on the night shift among nursing staff: potential benefits for workers' health

Cited by 4 publications

References 9 publications

Night work and BMI: is it related to on-shift napping?

Night work and BMI: is it related to on-shift napping?

On-shift naps are associated with systolic and diastolic blood pressure level among night working nursing professionals

Work schedule and self-reported hypertension – the potential beneficial role of on-shift naps for night workers

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