<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1727-897X</journal-id>
<journal-title><![CDATA[MediSur]]></journal-title>
<abbrev-journal-title><![CDATA[Medisur]]></abbrev-journal-title>
<issn>1727-897X</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Cienfuegos, Centro Provincial de Ciencias Médicas, Provincia de Cienfuegos.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1727-897X2019000200284</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización de la tipología circadiana en estudiantes universitarios en relación con el tipo de carrera]]></article-title>
<article-title xml:lang="en"><![CDATA[Characterization of the circadian typology in university students in relation to the type of career]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Machado Rojas]]></surname>
<given-names><![CDATA[Arlan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Broche Pérez]]></surname>
<given-names><![CDATA[Yunier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montenegro]]></surname>
<given-names><![CDATA[Osvaldo Norman]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de la Torre Santos]]></surname>
<given-names><![CDATA[María Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tirado Saura]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Machado de la Torre]]></surname>
<given-names><![CDATA[Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas de Villa Clara  ]]></institution>
<addr-line><![CDATA[Santa Clara ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Central Marta Abreu de Las Villas  ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Materno Mariana Grajales  ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<volume>17</volume>
<numero>2</numero>
<fpage>284</fpage>
<lpage>289</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1727-897X2019000200284&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1727-897X2019000200284&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1727-897X2019000200284&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Fundamento:  El cronotipo es un atributo de los seres humanos, que refleja su fase circadiana individual, y repercute en las funciones biológicas y psicológicas, tanto en la salud como en la enfermedad. Su estudio es particularmente valioso en escenarios educacionales.  Objetivo: caracterizar el cronotipo de estudiantes universitarios en relación con el tipo de carrera que estudian.  Métodos:  e realizó un estudio analítico trasversal, en una serie de 273 estudiantes universitarios, seleccionados por muestreo aleatorio simple, estructurados en tres grupos bajo criterio de procedencia: 88 de Ciencias Técnicas, 88 de Ciencias Sociales y Humanísticas y 97 de Ciencias Médicas. Se exploró el cronotipo de cada sujeto por medio del Cuestionario de Matutinidad- Vespertinidad. Para cada grupo fueron calculadas las puntuaciones medias resultantes del cuestionario y las proporciones de individuos matutinos, intermedios y vespertinos.  Resultados: las puntuaciones medias de los tres grupos estuvieron enmarcadas en el rango de cronotipo intermedio, y no se constaron diferencias estadísticamente significativas. El 67 % de los sujetos fueron clasificados como intermedios, el 23,8 % como matutinos y el 9,2 % como vespertinos; las proporciones de los cronotipos por grupos tampoco mostraron diferencias significativas.  Conclusión:  existió un claro predominio del cronotipo intermedio, seguido en frecuencia por el matutino y el vespertino. No se demostró que el tipo de carrera influyera en las puntuaciones, ni en las proporciones de las tipologías circadianas por grupos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Foundation:  Chronotype is an attribute of human beings, which reflects its individual circadian phase, and affects biological and psychological functions, both in health and disease. Its study is particularly valuable in educational settings.  Objective:  to characterize the chronotype of university students in relation to the type of career they study.  Methods:  a cross-sectional analytical study was conducted in a series of 273 university students, selected by simple random sampling, structured in three groups based on provenance criteria: 88 from Technical Sciences, 88 from Social and Humanistic Sciences and 97 from Medical Sciences. The chronotype of each subject was explored through the Morningness and Eveningness Questionnaire. For each group the mean scores of the questionnaire and the proportions of morning, intermediate and evening individuals were calculated.  Results:  the mean scores of the three groups were framed in the intermediate chronotype range, and there were no statistically significant differences. Subjects were classified as 67% of as intermediate, 23.8% as morning and 9.2 % as evening; chronotype proportions by groups also showed no significant differences.  Conclusion:  there was a clear predominance of intermediate chronotype, followed in frequency by morning and evening. It was not demonstrated that the type of career influenced scores, nor in proportions of the circadian typologies by groups.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ritmo circadiano]]></kwd>
<kwd lng="es"><![CDATA[disciplina de cronobiología]]></kwd>
<kwd lng="es"><![CDATA[encuestas y cuestionarios]]></kwd>
<kwd lng="es"><![CDATA[estudiantes]]></kwd>
<kwd lng="en"><![CDATA[Circadian rhythm]]></kwd>
<kwd lng="en"><![CDATA[chronobiology discipline]]></kwd>
<kwd lng="en"><![CDATA[surveys and questionnaires]]></kwd>
<kwd lng="en"><![CDATA[students]]></kwd>
</kwd-group>
</article-meta>
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