Artigo de periodico

Delayed sleep in winter related to natural daylight exposure among arctic day workers (2019)

• Authors:
  • Arne, Lowden
  • Lemos, Nelson A. M
  • Gonçalves, Bruno da Silva Brandão - Universidade de São Paulo (USP)
  • Öztürk, Gülçin
  • Louzada, Fernando - Universidade Federal do Paraná (UFPR)
  • Pedrazzoli, Mario
  • Moreno, Claudia Roberta de Castro
• USP affiliated authors: PEDRAZZOLI NETO, MARIO - EACH ; MORENO, CLAUDIA ROBERTA DE CASTRO - FSP
• Unidades: EACH; FSP
• DOI: 10.3390/clockssleep1010010
• Subjects: TRANSTORNOS DO SONO; RITMO CIRCADIANO; LUZ; TRABALHADORES; PÓLO NORTE
• Agências de fomento:
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
    Processo FAPESP: 14/01514-0
• Language: Inglês
• Abstract: Abstract: Natural daylight exposures in arctic regions vary substantially across seasons. Negative consequences have been observed in self-reports of sleep and daytime functions during the winter but have rarely been studied in detail. The focus of the present study set out to investigate sleep seasonality among indoor workers using objective and subjective measures. Sleep seasonality among daytime office workers (n = 32) in Kiruna (Sweden, 67.86◦ N, 20.23◦ E) was studied by comparing the same group of workers in a winter and summer week, including work and days off at the weekend, using actigraphs (motion loggers) and subjective ratings of alertness and mood. Actigraph analyses showed delayed sleep onset of 39 min in winter compared to the corresponding summer week (p < 0.0001) and shorter weekly sleep duration by 12 min (p = 0.0154). A delay of mid-sleep was present in winter at workdays (25 min, p < 0.0001) and more strongly delayed during days off (46 min, p < 0.0001). Sleepiness levels were higher in winter compared to summer (p < 0.05). Increased morning light exposure was associated with earlier mid-sleep (p < 0.001), while increased evening light exposure was associated with delay (p < 0.01). This study confirms earlier work that suggests that lack of natural daylight delays the sleep/wake cycle in a group of indoor workers, despite having access to electric lighting. Photic stimuli resulted in a general advanced sleep/wake rhythm during summer and increased alertness levels
• Imprenta:
  • Publisher place: Basel
  • Date published: 2019
• Source:
  • Título do periódico: Clocks & Sleep
  • ISSN: 2624-5175
  • Volume/Número/Paginação/Ano: v.1, n.1, p.105-116, 2019

Informações sobre o DOI: 10.3390/clockssleep1010010 (Fonte: oaDOI API)
• Este periódico é de acesso aberto
• Este artigo é de acesso aberto
• URL de acesso aberto
• Cor do Acesso Aberto: gold
• Licença: cc-by

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• ABNT

  ARNE, Lowden et al. Delayed sleep in winter related to natural daylight exposure among arctic day workers. Clocks & Sleep, v. 1, n. 1, p. 105-116, 2019Tradução . . Disponível em: https://doi.org/10.3390/clockssleep1010010. Acesso em: 27 abr. 2024.

• APA

  Arne, L., Lemos, N. A. M., Gonçalves, B. da S. B., Öztürk, G., Louzada, F., Pedrazzoli, M., & Moreno, C. R. de C. (2019). Delayed sleep in winter related to natural daylight exposure among arctic day workers. Clocks & Sleep, 1( 1), 105-116. doi:10.3390/clockssleep1010010

• NLM

  Arne L, Lemos NAM, Gonçalves B da SB, Öztürk G, Louzada F, Pedrazzoli M, Moreno CR de C. Delayed sleep in winter related to natural daylight exposure among arctic day workers [Internet]. Clocks & Sleep. 2019 ;1( 1): 105-116.[citado 2024 abr. 27 ] Available from: https://doi.org/10.3390/clockssleep1010010

• Vancouver

  Arne L, Lemos NAM, Gonçalves B da SB, Öztürk G, Louzada F, Pedrazzoli M, Moreno CR de C. Delayed sleep in winter related to natural daylight exposure among arctic day workers [Internet]. Clocks & Sleep. 2019 ;1( 1): 105-116.[citado 2024 abr. 27 ] Available from: https://doi.org/10.3390/clockssleep1010010

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