Relationship between circadian strain, light exposure, and body mass index in rural and urban quilombola communities
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/240284 |
Resumo: | Industrialization has greatly changed human lifestyle; work and leisure activities have been moved indoors, and artificial light has been used to illuminate the night. As cyclic environmental cues such as light and feeding become weak and/or irregular, endogenous circadian systems are increasingly being disrupted. These disruptions are associated with metabolic dysfunction, possibly contributing to increased rates of overweight and obesity worldwide. Here, we aimed to investigate how activity-rest rhythms, patterns of light exposure, and levels of urbanization may be associated with body mass index (BMI) in a sample of rural and urban Quilombola communities in southern Brazil. These are characterized as remaining social groups who resisted the slavery regime that prevailed in Brazil. Quilombola communities were classified into five groups according to their stage of urbanization: from rural areas with no access to electricity to highly urbanized communities. We collected anthropometric data to calculate BMI, which was categorized as follows: from ≥ 18.5 kg/m2 to < 25 kg/m2 = normal weight; from ≥ 25 kg/m2 to < 30 kg/m2 = overweight; and ≥ 30 kg/m2 = obese. Subjects were asked about their sleep routines and light exposure on workdays and work-free days using the Munich Chronotype Questionnaire (N = 244 included). In addition, we analyzed actimetry data from 121 participants with seven consecutive days of recordings. Living in more urbanized areas and higher intradaily variability (IV) of activity-rest rhythms were associated with an increased risk of belonging to the overweight or obese group, when controlling for age and sex. These findings are consistent with preclinical data and point to potential strategies in obesity prevention and promotion of healthy metabolic profiles. |
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Constantino, Débora BarroggiXavier, Nicóli BertuolLevandovski, Rosa MariaRoenneberg, TillHidalgo, Maria Paz LoayzaPilz, Luísa Klaus2022-06-15T04:42:31Z20221664-042Xhttp://hdl.handle.net/10183/240284001139776Industrialization has greatly changed human lifestyle; work and leisure activities have been moved indoors, and artificial light has been used to illuminate the night. As cyclic environmental cues such as light and feeding become weak and/or irregular, endogenous circadian systems are increasingly being disrupted. These disruptions are associated with metabolic dysfunction, possibly contributing to increased rates of overweight and obesity worldwide. Here, we aimed to investigate how activity-rest rhythms, patterns of light exposure, and levels of urbanization may be associated with body mass index (BMI) in a sample of rural and urban Quilombola communities in southern Brazil. These are characterized as remaining social groups who resisted the slavery regime that prevailed in Brazil. Quilombola communities were classified into five groups according to their stage of urbanization: from rural areas with no access to electricity to highly urbanized communities. We collected anthropometric data to calculate BMI, which was categorized as follows: from ≥ 18.5 kg/m2 to < 25 kg/m2 = normal weight; from ≥ 25 kg/m2 to < 30 kg/m2 = overweight; and ≥ 30 kg/m2 = obese. Subjects were asked about their sleep routines and light exposure on workdays and work-free days using the Munich Chronotype Questionnaire (N = 244 included). In addition, we analyzed actimetry data from 121 participants with seven consecutive days of recordings. Living in more urbanized areas and higher intradaily variability (IV) of activity-rest rhythms were associated with an increased risk of belonging to the overweight or obese group, when controlling for age and sex. These findings are consistent with preclinical data and point to potential strategies in obesity prevention and promotion of healthy metabolic profiles.application/pdfengFrontiers in physiology. Columbus. Vol. 12 (Jan. 2022), 773969, 11 p.ObesidadeCronobiologiaLuzÍndice de massa corporalRitmo circadianoActimetryObesityIntradaily variabilityChronobiologyRest-activity rhythmsLevels of urbanizationRelative amplitudeRelationship between circadian strain, light exposure, and body mass index in rural and urban quilombola 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:UFRGSTEXT001139776.pdf.txt001139776.pdf.txtExtracted Texttext/plain54553http://www.lume.ufrgs.br/bitstream/10183/240284/2/001139776.pdf.txt0b8e2b6e2f361d0573dd619999f3e042MD52ORIGINAL001139776.pdfTexto completo (inglês)application/pdf1643451http://www.lume.ufrgs.br/bitstream/10183/240284/1/001139776.pdf0a1438d00758ce99c4024e72568b7af5MD5110183/2402842023-10-27 03:27:10.012815oai:www.lume.ufrgs.br:10183/240284Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-10-27T06:27:10Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Relationship between circadian strain, light exposure, and body mass index in rural and urban quilombola communities |
title |
Relationship between circadian strain, light exposure, and body mass index in rural and urban quilombola communities |
spellingShingle |
Relationship between circadian strain, light exposure, and body mass index in rural and urban quilombola communities Constantino, Débora Barroggi Obesidade Cronobiologia Luz Índice de massa corporal Ritmo circadiano Actimetry Obesity Intradaily variability Chronobiology Rest-activity rhythms Levels of urbanization Relative amplitude |
title_short |
Relationship between circadian strain, light exposure, and body mass index in rural and urban quilombola communities |
title_full |
Relationship between circadian strain, light exposure, and body mass index in rural and urban quilombola communities |
title_fullStr |
Relationship between circadian strain, light exposure, and body mass index in rural and urban quilombola communities |
title_full_unstemmed |
Relationship between circadian strain, light exposure, and body mass index in rural and urban quilombola communities |
title_sort |
Relationship between circadian strain, light exposure, and body mass index in rural and urban quilombola communities |
author |
Constantino, Débora Barroggi |
author_facet |
Constantino, Débora Barroggi Xavier, Nicóli Bertuol Levandovski, Rosa Maria Roenneberg, Till Hidalgo, Maria Paz Loayza Pilz, Luísa Klaus |
author_role |
author |
author2 |
Xavier, Nicóli Bertuol Levandovski, Rosa Maria Roenneberg, Till Hidalgo, Maria Paz Loayza Pilz, Luísa Klaus |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Constantino, Débora Barroggi Xavier, Nicóli Bertuol Levandovski, Rosa Maria Roenneberg, Till Hidalgo, Maria Paz Loayza Pilz, Luísa Klaus |
dc.subject.por.fl_str_mv |
Obesidade Cronobiologia Luz Índice de massa corporal Ritmo circadiano |
topic |
Obesidade Cronobiologia Luz Índice de massa corporal Ritmo circadiano Actimetry Obesity Intradaily variability Chronobiology Rest-activity rhythms Levels of urbanization Relative amplitude |
dc.subject.eng.fl_str_mv |
Actimetry Obesity Intradaily variability Chronobiology Rest-activity rhythms Levels of urbanization Relative amplitude |
description |
Industrialization has greatly changed human lifestyle; work and leisure activities have been moved indoors, and artificial light has been used to illuminate the night. As cyclic environmental cues such as light and feeding become weak and/or irregular, endogenous circadian systems are increasingly being disrupted. These disruptions are associated with metabolic dysfunction, possibly contributing to increased rates of overweight and obesity worldwide. Here, we aimed to investigate how activity-rest rhythms, patterns of light exposure, and levels of urbanization may be associated with body mass index (BMI) in a sample of rural and urban Quilombola communities in southern Brazil. These are characterized as remaining social groups who resisted the slavery regime that prevailed in Brazil. Quilombola communities were classified into five groups according to their stage of urbanization: from rural areas with no access to electricity to highly urbanized communities. We collected anthropometric data to calculate BMI, which was categorized as follows: from ≥ 18.5 kg/m2 to < 25 kg/m2 = normal weight; from ≥ 25 kg/m2 to < 30 kg/m2 = overweight; and ≥ 30 kg/m2 = obese. Subjects were asked about their sleep routines and light exposure on workdays and work-free days using the Munich Chronotype Questionnaire (N = 244 included). In addition, we analyzed actimetry data from 121 participants with seven consecutive days of recordings. Living in more urbanized areas and higher intradaily variability (IV) of activity-rest rhythms were associated with an increased risk of belonging to the overweight or obese group, when controlling for age and sex. These findings are consistent with preclinical data and point to potential strategies in obesity prevention and promotion of healthy metabolic profiles. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-06-15T04:42:31Z |
dc.date.issued.fl_str_mv |
2022 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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http://hdl.handle.net/10183/240284 |
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1664-042X |
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001139776 |
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1664-042X 001139776 |
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http://hdl.handle.net/10183/240284 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Frontiers in physiology. Columbus. Vol. 12 (Jan. 2022), 773969, 11 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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