Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-10T00:02:16Z No. of bitstreams: 1 FernandaFernandesKolodiuk_DISSERT.pdf: 12001033 bytes, checksum: 477763b89fc24705d27960971b414f59 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-16T20:20:28Z (GMT) No. of bitstreams: 1 FernandaFernandesKolodiuk_DISSERT.pdf: 12001033 bytes, checksum: 477763b89fc24705d27960971b414f59 (MD5) / Made available in DSpace on 2016-03-16T20:20:28Z (GMT). No. of bitstreams: 1 FernandaFernandesKolodiuk_DISSERT.pdf: 12001033 bytes, checksum: 477763b89fc24705d27960971b414f59 (MD5) Previous issue date: 2015-05-19 / Demanda acad?mica, novo contexto social, novas rotinas e diminui??o do controle dos pais s?o fatores que podem influenciar o padr?o de sono de estudantes que ingressam na universidade. Os discentes de Medicina da Universidade Federal do Rio Grande do Norte (UFRN) apresentam elevada carga hor?ria, conte?do denso nas disciplinas, as aulas do 1o semestre come?am ?s 7 horas da manh? e sua popula??o ? formada por adultos jovens, que ainda sofrem com o atraso de fase de sono comum na adolesc?ncia, o que indica que o hor?rio de aula pode ser inadequado nesta faixa et?ria. A redu??o do sono noturno durante os dias de aula e a tentativa de recupera??o do sono perdido nos dias livres ? Jet lag social (JLS), sugere que j? no primeiro semestre os estudantes sofrem com press?o do sono, o que pode refletir negativamente em tarefas cognitivas e no desempenho acad?mico. Portanto, o objetivo deste trabalho ? avaliar a rela??o entre a press?o do sono e o perfil acad?mico de estudantes de Medicina do primeiro semestre da UFRN, caracterizando sociodemograficamente esta popula??o e investigando poss?veis reflexos no ritmo de atividade-repouso e no desempenho acad?mico. Participaram desta pesquisa 88 estudantes, saud?veis de ambos os sexos, que respoderam aos seguintes question?rios: Qualidade de Sono de Pittsburgh (IQSP), Escala de Sonol?ncia de Epworth (ESE), Cronotipo Horne & Ostberg (HO), Cronotipo Munique (MCTQ) e ?A Sa?de e o Sono?, adaptado. Actimetria foi utilizada em 14 dias para elabora??o de actogramas e obten??o de vari?veis n?o param?tricas do ritmo de atividade-repouso. A nota da disciplina M?dulos Biol?gicos I foi utilizada como desempenho acad?mico. O JLS foi utilizado como medida de press?o do sono e o n?vel de signific?ncia estat?stica foi 95%. A popula??o ? homog?nea em rela??o aos aspectos sociodemogr?ficos e a maioria tem estilo de vida saud?vel, pratica atividade f?sica, locomove-se at? a universidade em carro e leva entre 15 e 30 minutos para realizar tal percurso. Em rela??o ao CSV, grande parte apresentou cronotipo intermedi?rio e vespertino, necessita cochilar durante a semana, sofre sonol?ncia diurna e apresenta m? qualidade de sono. 83% da amostra tem ao menos 1h de JLS, o que nos levou ? divis?o em dois grupos: Grupo < 2h JLS (N=44) e Grupo ? 2h JLS (N=44). Os grupos diferiram apenas no cronotipo, demonstrando que indiv?duos mais vespertinos apresentam mais JLS. Entretanto, n?o encontramos diferen?as em rela??o aos aspectos sociodemogr?ficos, ritmo de atividade-repouso ou desempenho acad?mico. A homogeneidade da amostra possivelmente dificultou a compara??o entre os grupos, todavia, ? alarmante que os estudantes j? apresentem, no primeiro semestre: JLG, qualidade de sono ruim e sonol?ncia diurna excessiva, os quais podem acentuar-se no decorrer do curso, com o in?cio de plant?es noturnos e o aumento da carga hor?ria. Abordar a import?ncia de bons h?bitos de sono e a mudan?a no hor?rio de in?cio da aula s?o estrat?gias que visam ? melhoria na sa?de dos estudantes. / Academic demands, new social context, new routines and decrease of the parental control, are factors that may influence the sleep pattern of freshman students at the University. Medical students from the Federal University of Rio Grande do Norte (UFRN) have a full-time course, subjects with high-level content, and, at the first semester, classes begin at 7 a.m. This group composed by young adults who still suffering with delayed sleep phase, common in adolescence, indicating that this class schedule can be inappropriate at this age. The reduction of nocturnal sleep during school days, and the attempt to recover sleep on free days ? social jet lag (JLS), suggests that in the first semester, students suffer from high sleep pressure. High sleep pressure may reflect on cognitive tasks and performance. Therefore, the aim of this study was to investigate the relationship between sleep pressure and the academic profile of medical students from the first semester of UFRN, characterizing this population socio-demographically and investigating possible impacts on therestactivity rhytm and academic performance. A sample of 88 students, healthy men and women awswered the following questionnaires: Pittsburgh Sleep Quality (PSQI), Epworth Sleepiness Scale (ESS), Horne & Ostberg Chronotype (HO), Munich Chronotype (MCTQ) and ?Health and Sleep? adapted. Actigraphy was used during 14 days to make actogramas and obtain non-parametric variables of the rest-activity rhythm and the grades of the morning schedule were used as academic performance. The JLS was used as a measure of sleep pressure. Statistics significance level was 95%. The population was sociodemographic homogeneous. Most students have healthy lifestyle, practice physical activity, use car to go to the university and take between 15 and 30 minutes for this route. Regarding CSV, most were classify as intermediate (38.6%) and evening (32%) chronotypes, needs to nap during the week, suffer daytime sleepiness and have poor sleep quality. 83% of the sample has at least 1h JLS, which led us to divide into two groups: Group <2h JLS (N = 44) and Group ? 2h JLS (N = 44). The groups have differences only in chronotype, showing that most evening individuals have more JLS, however, no differences were found in relation to sociodemographic aspect, rest-activity rhythm or academic performance. The homogeneity of the sample was limited to compare the groups, however, is alarming that students already present in the first half: JLG, poor sleep quality and excessive daytime sleepiness, which can be accentuated through the university years, with the emergence of night shifts and increased academic demand. Interventionsaddressingthe importance of good sleep habits and the change of the class start time are strategies aimed to improve student?s health.