Sleep and light exposure across different levels of urbanisation in Brazilian communities
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/213740 |
Resumo: | Quilombos are settlements originally founded by Africans and African descendants (Quilombolas) in remote parts of Brazil to escape slavery. Due to individual histories, Quilombos nowadays exhibit different states of industrialisation, making them ideal for studying the influence of electrification on daily behaviour. In a comparative approach, we aimed to understand whether and how human sleep changes with the introduction of artificial light. We investigated daily rest-activity-rhythms and sleep-patterns in the Quilombolas’ by both wrist actimetry and the Munich ChronoType Questionnaire (MCTQ; the results of these two instruments correlated highly). Seven communities (MCTQ: N = 213/actimetry: N = 125) were compared in this study. Light exposure, phase of activity, sleep timing and duration differ across communities with various levels of urbanisation and histories of access to electricity. People living without electricity and those, who acquired it only very recently on average sleep earlier than those in more urbanised communities (mid-sleep about 1 hour earlier); sleep duration tends to be longer. Our results and those of others show that use of electricity and modern lifestyles have changed sleep behaviour. To understand the consequences of these changes for health, further studies are warranted. |
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Pilz, Luísa KlausCarissimi, AliciaOliveira, Melissa Alves Braga deFrancisco, Ana PaulaFabris, Raul CostaMedeiros, Madeleine S.Medeiros, Marina ScopFrey, Benício NoronhaAdan, AnaHidalgo, Maria Paz Loayza2020-09-26T04:08:18Z20182045-2322http://hdl.handle.net/10183/213740001116814Quilombos are settlements originally founded by Africans and African descendants (Quilombolas) in remote parts of Brazil to escape slavery. Due to individual histories, Quilombos nowadays exhibit different states of industrialisation, making them ideal for studying the influence of electrification on daily behaviour. In a comparative approach, we aimed to understand whether and how human sleep changes with the introduction of artificial light. We investigated daily rest-activity-rhythms and sleep-patterns in the Quilombolas’ by both wrist actimetry and the Munich ChronoType Questionnaire (MCTQ; the results of these two instruments correlated highly). Seven communities (MCTQ: N = 213/actimetry: N = 125) were compared in this study. Light exposure, phase of activity, sleep timing and duration differ across communities with various levels of urbanisation and histories of access to electricity. People living without electricity and those, who acquired it only very recently on average sleep earlier than those in more urbanised communities (mid-sleep about 1 hour earlier); sleep duration tends to be longer. Our results and those of others show that use of electricity and modern lifestyles have changed sleep behaviour. To understand the consequences of these changes for health, further studies are warranted.application/pdfengScientific reports. London. Vol. 8 (2018), 11389,11 p.SonoRitmo circadianoRelógios biológicosIluminaçãoLuzUrbanizaçãoSleep and light exposure across different levels of urbanisation in Brazilian communitiesEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001116814.pdf.txt001116814.pdf.txtExtracted Texttext/plain53797http://www.lume.ufrgs.br/bitstream/10183/213740/2/001116814.pdf.txtaff1edb315f30bbed5e5ca75147b5af3MD52ORIGINAL001116814.pdfTexto completo (inglês)application/pdf2686712http://www.lume.ufrgs.br/bitstream/10183/213740/1/001116814.pdfe63e6b07181a7329d16b02b405008bbcMD5110183/2137402020-09-27 04:04:09.320381oai:www.lume.ufrgs.br:10183/213740Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2020-09-27T07:04:09Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Sleep and light exposure across different levels of urbanisation in Brazilian communities |
title |
Sleep and light exposure across different levels of urbanisation in Brazilian communities |
spellingShingle |
Sleep and light exposure across different levels of urbanisation in Brazilian communities Pilz, Luísa Klaus Sono Ritmo circadiano Relógios biológicos Iluminação Luz Urbanização |
title_short |
Sleep and light exposure across different levels of urbanisation in Brazilian communities |
title_full |
Sleep and light exposure across different levels of urbanisation in Brazilian communities |
title_fullStr |
Sleep and light exposure across different levels of urbanisation in Brazilian communities |
title_full_unstemmed |
Sleep and light exposure across different levels of urbanisation in Brazilian communities |
title_sort |
Sleep and light exposure across different levels of urbanisation in Brazilian communities |
author |
Pilz, Luísa Klaus |
author_facet |
Pilz, Luísa Klaus Carissimi, Alicia Oliveira, Melissa Alves Braga de Francisco, Ana Paula Fabris, Raul Costa Medeiros, Madeleine S. Medeiros, Marina Scop Frey, Benício Noronha Adan, Ana Hidalgo, Maria Paz Loayza |
author_role |
author |
author2 |
Carissimi, Alicia Oliveira, Melissa Alves Braga de Francisco, Ana Paula Fabris, Raul Costa Medeiros, Madeleine S. Medeiros, Marina Scop Frey, Benício Noronha Adan, Ana Hidalgo, Maria Paz Loayza |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Pilz, Luísa Klaus Carissimi, Alicia Oliveira, Melissa Alves Braga de Francisco, Ana Paula Fabris, Raul Costa Medeiros, Madeleine S. Medeiros, Marina Scop Frey, Benício Noronha Adan, Ana Hidalgo, Maria Paz Loayza |
dc.subject.por.fl_str_mv |
Sono Ritmo circadiano Relógios biológicos Iluminação Luz Urbanização |
topic |
Sono Ritmo circadiano Relógios biológicos Iluminação Luz Urbanização |
description |
Quilombos are settlements originally founded by Africans and African descendants (Quilombolas) in remote parts of Brazil to escape slavery. Due to individual histories, Quilombos nowadays exhibit different states of industrialisation, making them ideal for studying the influence of electrification on daily behaviour. In a comparative approach, we aimed to understand whether and how human sleep changes with the introduction of artificial light. We investigated daily rest-activity-rhythms and sleep-patterns in the Quilombolas’ by both wrist actimetry and the Munich ChronoType Questionnaire (MCTQ; the results of these two instruments correlated highly). Seven communities (MCTQ: N = 213/actimetry: N = 125) were compared in this study. Light exposure, phase of activity, sleep timing and duration differ across communities with various levels of urbanisation and histories of access to electricity. People living without electricity and those, who acquired it only very recently on average sleep earlier than those in more urbanised communities (mid-sleep about 1 hour earlier); sleep duration tends to be longer. Our results and those of others show that use of electricity and modern lifestyles have changed sleep behaviour. To understand the consequences of these changes for health, further studies are warranted. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2020-09-26T04:08:18Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
format |
article |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/213740 |
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2045-2322 |
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001116814 |
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2045-2322 001116814 |
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http://hdl.handle.net/10183/213740 |
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eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Scientific reports. London. Vol. 8 (2018), 11389,11 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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