Ontogenetic patterns of the sleep/wake cycle in native adolescents (2005)
- Authors:
- Autor USP: BARRETO, LUIZ SILVEIRA MENNA - ICB
- Unidade: ICB
- Assunto: FISIOLOGIA
- Language: Inglês
- Abstract: The sleep/wake cycle (SWC) changes along adolescence. During weekdays there is higher diurnal sleepiness and shorter sleep duration than on weekends; moreover, they display sleep phase delay. Some authors believe these changes result from the interaction between biological and environmental factors. In this work, we observed the SWC in 21 adolescents from the ethnic group Guarani living in Boa Vista village (São Paulo) who live in a rural area, without electric light. We intended to verify whether they show a SWC pattern similar to that found in urban adolescents or if these characteristics are less evident under their condition as has been demonstrated in another of rural area adolescents. We applied Sleep Habits and Morningness-Eveningness questionnaires. The participants kept Sleep Diaries and wore wrist actimeters for at least 10 consecutives days, and collected oral temperature every 3 hours when awake. This protocol was applied on 3 occasions with 6 months intervals between them.We examined the actograms from Diaries and Actimetries, comparing them with t Student test; we evaluated the temperature oscillations by Cosinor Method, we used Pearson and Spearman´s correlations in order to identify relations between the measures, adopting the significance level at 0,05. We compared the occasions and considered our results in the context of adolescent sleep researches. We observed sleep and temperature phase delays in Guaraniadolescents similar to the delays found in other groups, as well as shorter sleep duration at weekends than weekdays. Our results show the importance of biological factors on sleep/wake and temperature phase delays along adolescence.
- Imprenta:
- Publisher: Comissão de Cultura e Extensão Universitária do ICB/USP
- Publisher place: São Paulo
- Date published: 2005
- Source:
- Título do periódico: Resumos
- Conference titles: Congresso do Instituto de Ciências Biomédicas
-
ABNT
TORRES, F. J. e MENNA-BARRETO, Luiz Silveira. Ontogenetic patterns of the sleep/wake cycle in native adolescents. 2005, Anais.. São Paulo: Comissão de Cultura e Extensão Universitária do ICB/USP, 2005. . Acesso em: 23 abr. 2024. -
APA
Torres, F. J., & Menna-Barreto, L. S. (2005). Ontogenetic patterns of the sleep/wake cycle in native adolescents. In Resumos. São Paulo: Comissão de Cultura e Extensão Universitária do ICB/USP. -
NLM
Torres FJ, Menna-Barreto LS. Ontogenetic patterns of the sleep/wake cycle in native adolescents. Resumos. 2005 ;[citado 2024 abr. 23 ] -
Vancouver
Torres FJ, Menna-Barreto LS. Ontogenetic patterns of the sleep/wake cycle in native adolescents. Resumos. 2005 ;[citado 2024 abr. 23 ] - School schedule transition and adolescent's biological rhythms
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