<?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>0124-7107</journal-id>
<journal-title><![CDATA[Universidad y Salud]]></journal-title>
<abbrev-journal-title><![CDATA[Univ. Salud]]></abbrev-journal-title>
<issn>0124-7107</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Nariño]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0124-71072021000300284</article-id>
<article-id pub-id-type="doi">10.22267/rus.212303.242</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Variabilidad del ritmo cardiaco e índices antropométricos en hombres universitarios de Santiago de Chile]]></article-title>
<article-title xml:lang="en"><![CDATA[Heart rate variability in cardiac rhythm and anthropometric indices in university males of Santiago de Chile]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Urbano-Cerda]]></surname>
<given-names><![CDATA[Sebastián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes-Barría]]></surname>
<given-names><![CDATA[Héctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vera-Aguirre]]></surname>
<given-names><![CDATA[Valentina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Wong]]></surname>
<given-names><![CDATA[Catalina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilera-Eguía]]></surname>
<given-names><![CDATA[Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Santo Tomás Facultad de Salud Programa Magíster en Ciencias de la Actividad Física y Deportes Aplicadas al Entrenamiento, Rehabilitación y Reintegro Deportivo]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad San Sebastián Facultad de Ciencias para el Cuidado de la Salud Escuela de Nutrición y Dietética]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad del Desarrollo Facultad de Salud Programa Magíster de Gestión en Salud]]></institution>
<addr-line><![CDATA[Santiago ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Católica de la Santísima Concepción Carrera de Kinesiología Departamento de Salud Pública, Facultad de Medicina]]></institution>
<addr-line><![CDATA[Concepción ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>23</volume>
<numero>3</numero>
<fpage>284</fpage>
<lpage>290</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0124-71072021000300284&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0124-71072021000300284&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0124-71072021000300284&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  La baja variabilidad del ritmo cardíaco (VRC) se ha asociado con desbalances autonómicos y riesgo cardiovascular en diversas poblaciones.  Objetivo:  Relacionar la variabilidad del ritmo cardíaco e índices antropométricos en hombres universitarios jóvenes, físicamente activos con bajo riesgo cardiometabólico.  Materiales y métodos:  Estudio descriptivo transversal. Participaron 10 hombres de 23,15 ± 2,91 años con un índice de masa corporal (IMC) de 25,48 ± 2,19 kg/m2 y un índice Cintura-Cadera (IC-C) de 0,81±0,02. La VRC en reposo se midió en un período de 5 minutos. Se realizó un análisis correlacional entre el IMC e IC-C con la proporción baja/alta frecuencia (LF/HF), desviación estándar de la variación instantánea de intervalos RR (SD1) y complejidad de los intervalos RR (&#945;-1). Además, se determinó el poder estadístico (1- &#946;) y tamaño del efecto (&#8220;d&#8221; de Cohen).  Resultados:  El LF/HF sólo se relaciona significativamente con el IC-C (r=0,638; p=0,047; d=0,80), mientras que SD1 y &#945;-1 no reportaron ninguna asociación con el IMC e IC-C.  Conclusiones:  Existe un predominio parasimpático que sugiere un mecanismo protector sobre el tejido adiposo intraabdominal relacionado al IC-C. Se requieren otros estudios que expliquen todas las variables moduladoras de la VRC.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Low heart rate variability (HRV) has been associated with autonomic imbalances and cardiovascular risk in various populations.  Objective: To relate HRV and anthropometric indices in young, physically active university male students with low cardiometabolic risk.  Materials and methods: A descriptive cross-sectional study, which included 10 men aged 23.15 ± 2.91 years, with a Body Mass Index (BMI) of 25.48 ± 2.19 kg/m2, and a Waist-Hip Ratio (WHR) of 0.81 ± 0.02. Resting heart rate variability was measured over a 5 minute period. A correlational analysis was performed between BMI and WHR with the low frequency/high frequency ratio (LF/HF), standard deviation of the instantaneous variation of RR intervals (SD1), and complexity of the RR intervals (&#945;-1). In addition, statistical power (1-&#946;) and effect size (Cohen's "d") were determined.  Results: LF/HF is only significantly related to WHR (r=0.638; p=0.047; d=0.80), while SD1 and &#945;-1 did not show any association with BMI and WHR.  Conclusions: There is a parasympathetic predominance that suggests a protective mechanism on intra-abdominal adipose tissue related to WHR. Further studies are required to explain all the modulating variables of the heart rate variability.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Sistema nervioso autónomo]]></kwd>
<kwd lng="es"><![CDATA[frecuencia cardíaca]]></kwd>
<kwd lng="es"><![CDATA[índice de masa corporal]]></kwd>
<kwd lng="es"><![CDATA[relación cintura-cadera]]></kwd>
<kwd lng="en"><![CDATA[Autonomic nervous system]]></kwd>
<kwd lng="en"><![CDATA[heart rate]]></kwd>
<kwd lng="en"><![CDATA[body mass index]]></kwd>
<kwd lng="en"><![CDATA[waist-hip ratio]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Veloza]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Quiñones]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Polanía]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Pachón-Valero]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Triviño]]></surname>
<given-names><![CDATA[CY]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heart rate variability as a predictive factor of cardiovascular diseases]]></article-title>
<source><![CDATA[Rev Colomb Cardiol]]></source>
<year>2019</year>
<volume>26</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>205-10</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gilgen-Ammann]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Schweizer]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Wyss]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[RR interval signal quality of a heart rate monitor and an ECG Holter at rest and during exercise]]></article-title>
<source><![CDATA[Eur J Appl Physiol]]></source>
<year>2019</year>
<volume>119</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1525-32</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fuentes-Barria]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[González-Wong]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Urbano Cerda]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Vera Aguirre]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Aguilera Eguía]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Actividad física como medida de control autonómico en pacientes con síndrome metabólico. Revisión narrativa]]></article-title>
<source><![CDATA[Rev Podium]]></source>
<year>2020</year>
<volume>15</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>694-704</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Billman]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
<name>
<surname><![CDATA[Huikuri]]></surname>
<given-names><![CDATA[HV]]></given-names>
</name>
<name>
<surname><![CDATA[Sacha]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Trimmel]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An introduction to heart ate variability: methodological considerations and clinical applications]]></article-title>
<source><![CDATA[Front Physiol]]></source>
<year>2015</year>
<volume>6</volume>
<page-range>55</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yadav]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
<name>
<surname><![CDATA[Yadav]]></surname>
<given-names><![CDATA[PK]]></given-names>
</name>
<name>
<surname><![CDATA[Yadav]]></surname>
<given-names><![CDATA[LK]]></given-names>
</name>
<name>
<surname><![CDATA[Agrawal]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Sah]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
<name>
<surname><![CDATA[Islam]]></surname>
<given-names><![CDATA[MN]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Association between obesity and heart rate variability indices: an intuition toward cardiac autonomic alteration - a risk of CVD]]></article-title>
<source><![CDATA[Diabetes Metab Syndr Obes]]></source>
<year>2017</year>
<volume>10</volume>
<page-range>57-64</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Benichou]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Pereira]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Mermillod]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Tauveron]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Pfabigan]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Maqdasy]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heart rate variability in type 2 diabetes mellitus: A systematic review and meta-analysis]]></article-title>
<source><![CDATA[PLoS One]]></source>
<year>2018</year>
<volume>13</volume>
<numero>4</numero>
<issue>4</issue>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosales-Soto]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Corsini-Pino]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Monsálves-Álvarez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Yáñez-Sepúlveda]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Response of the sympathetic-parasympathetic balance of the Heart Rate Variability during a week of aerobic training in road cyclists]]></article-title>
<source><![CDATA[Rev Andal Med Deport]]></source>
<year>2016</year>
<volume>9</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>143-7</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Penzel]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Kantelhardt]]></surname>
<given-names><![CDATA[JW]]></given-names>
</name>
<name>
<surname><![CDATA[Grote]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Peter]]></surname>
<given-names><![CDATA[JH]]></given-names>
</name>
<name>
<surname><![CDATA[Bunde]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of detrended fluctuation analysis and spectral analysis for heart rate variability in sleep and sleep apnea]]></article-title>
<source><![CDATA[IEEE Trans Biomed Eng]]></source>
<year>2003</year>
<volume>50</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1143-51</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nunan]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Sandercock]]></surname>
<given-names><![CDATA[GR]]></given-names>
</name>
<name>
<surname><![CDATA[Brodie]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A quantitative systematic review of normal values for short-term heart rate variability in healthy adults]]></article-title>
<source><![CDATA[Pacing Clin Electrophysiol]]></source>
<year>2010</year>
<volume>33</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1407-17</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perrotta]]></surname>
<given-names><![CDATA[AS]]></given-names>
</name>
<name>
<surname><![CDATA[Jeklin]]></surname>
<given-names><![CDATA[AT]]></given-names>
</name>
<name>
<surname><![CDATA[Hives]]></surname>
<given-names><![CDATA[BA]]></given-names>
</name>
<name>
<surname><![CDATA[Meanwell]]></surname>
<given-names><![CDATA[LE]]></given-names>
</name>
<name>
<surname><![CDATA[Warburton]]></surname>
<given-names><![CDATA[DER]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Validity of the Elite HRV Smartphone Application for Examining Heart Rate Variability in a Field-Based Setting]]></article-title>
<source><![CDATA[J Strength Cond Res]]></source>
<year>2017</year>
<volume>31</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>2296-302</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Altini]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Van Hoof]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Amft]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relation between estimated cardiorespiratory fitness and running performance in free-living: An analysis of HRV4Training data]]></article-title>
<source><![CDATA[2017 IEEE EMBS International Conference on Biomedical &amp; Health Informatics (BHI)]]></source>
<year>2017</year>
<page-range>249-52</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Koch-Villegas]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Cancino-López]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Roco Videla]]></surname>
<given-names><![CDATA[Á]]></given-names>
</name>
<name>
<surname><![CDATA[Jorquera-Aguilera]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Aguilera-Eguia]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Orellana]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Control del ritmo cardiaco, ingesta energética y calidad del sueño en bailarines de danza clásica]]></article-title>
<source><![CDATA[Rev. Finlay]]></source>
<year>2018</year>
<volume>8</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>284-90</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castro-Sepúlveda]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Cerda-Kohler]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Luco]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Monsalves]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Andrade]]></surname>
<given-names><![CDATA[DC]]></given-names>
</name>
<name>
<surname><![CDATA[Zbinden-Foncea]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El estado de hidratación después del ejercicio afecta la tasa metabólica basal y la variabilidad de la frecuencia cardiaca]]></article-title>
<source><![CDATA[Nutr Hosp]]></source>
<year>2015</year>
<volume>31</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>1273-7</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Córdoba-Ávila]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Cobos]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Salas]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Camacho]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[González-Medina]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variabilidad de la frecuencia cardiaca en estudiantes de medicina que presentan una privación crónica del sueño]]></article-title>
<source><![CDATA[Iatreia]]></source>
<year>2018</year>
<volume>31</volume>
<numero>^sSuppl 1</numero>
<issue>^sSuppl 1</issue>
<supplement>Suppl 1</supplement>
<page-range>S57</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zamorano]]></surname>
<given-names><![CDATA[VG]]></given-names>
</name>
<name>
<surname><![CDATA[Peinado]]></surname>
<given-names><![CDATA[AB]]></given-names>
</name>
<name>
<surname><![CDATA[Benito]]></surname>
<given-names><![CDATA[PJ]]></given-names>
</name>
<name>
<surname><![CDATA[Calderón]]></surname>
<given-names><![CDATA[FJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Respuesta de la frecuencia cardiaca de anticipación y recuperación en función del nivel de entrenamiento aeróbico]]></article-title>
<source><![CDATA[Arch. med. Deporte]]></source>
<year>2013</year>
<volume>30</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>202-7</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Caicedo-Ochoa]]></surname>
<given-names><![CDATA[EY]]></given-names>
</name>
<name>
<surname><![CDATA[Urrutia Gómez]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relación entre el control autonómico cardíaco e índices antropométricos normales en hombres jóvenes Tunja, Boyacá, Colombia, 2014]]></article-title>
<source><![CDATA[Medicas UIS]]></source>
<year>2015</year>
<volume>28</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>301-8</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Serón]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Lanas]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nivel de actividad física medida a través de Cuestionario Internacional de Actividad Física en población chilena]]></article-title>
<source><![CDATA[Rev Med Chile]]></source>
<year>2010</year>
<volume>138</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1232-9</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Durán-Agüero]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Godoy]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Fehrmann-Rosas]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Delgado-Sánchez]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Quintana-Muñoz]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Yunge-Hidalgo]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fewer hours of sleep associated with increased body weight in Chilean University nutrition students]]></article-title>
<source><![CDATA[Rev Peru Med Exp Salud Publica]]></source>
<year>2016</year>
<volume>33</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>264-8</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lillo Santander]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Jorquera Aguilera]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Roco Videla]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Íñiguez Carillo]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Aguilera Eguía]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Rojas Pérez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Morphological Profile of Female Professional Soccer Players in Chile]]></article-title>
<source><![CDATA[Medisur]]></source>
<year>2018</year>
<volume>16</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>248-58</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schuindt da Silva]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Soares Vieira]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[International society for the advancement of kinanthropometry (Isak) global: International accreditation scheme of the competent anthropometrist]]></article-title>
<source><![CDATA[Rev Bras Cineantropometria e Desempenho Hum]]></source>
<year>2020</year>
<volume>22</volume>
</nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Muñoz Cofre]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[del Sol]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Medina González]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Escobar Inostroza]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Lizana]]></surname>
<given-names><![CDATA[PA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relación de los índices de masa corporal y cintura-cadera con la capacidad residual funcional pulmonar en niños chilenos obesos versus normopeso: un estudio transversal]]></article-title>
<source><![CDATA[Arch Argent Pediatr]]></source>
<year>2019</year>
<volume>117</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>230-6</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shaffer]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Ginsberg]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An Overview of Heart Rate Variability Metrics and Norms]]></article-title>
<source><![CDATA[Front Public Heal]]></source>
<year>2017</year>
<volume>5</volume>
<page-range>258</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tarvainen]]></surname>
<given-names><![CDATA[MP]]></given-names>
</name>
<name>
<surname><![CDATA[Niskanen]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
<name>
<surname><![CDATA[Lipponen]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Ranta-aho]]></surname>
<given-names><![CDATA[PO]]></given-names>
</name>
<name>
<surname><![CDATA[Karjalainen]]></surname>
<given-names><![CDATA[PA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kubios HRV - Heart rate variability analysis software]]></article-title>
<source><![CDATA[Comput Methods Programs Biomed]]></source>
<year>2014</year>
<volume>113</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>210-20</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="">
<collab>IBM</collab>
<source><![CDATA[IBM SPSS Statistics 26]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Faul]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Erdfelder]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Buchner]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Lang]]></surname>
<given-names><![CDATA[A-G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Statistical power analyses using G*Power 3.1: Tests for correlation and regression analyses]]></article-title>
<source><![CDATA[Behav Res Methods]]></source>
<year>2009</year>
<volume>41</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1149-60</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<collab>World Medical Association</collab>
<article-title xml:lang=""><![CDATA[World Medical Association declaration of Helsinki Ethical principles for medical research involving human subjects]]></article-title>
<source><![CDATA[JAMA]]></source>
<year>2013</year>
<volume>310</volume>
<numero>20</numero>
<issue>20</issue>
<page-range>2191-4</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aune]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Sen]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Norat]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Janszky]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Romundstad]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Tonstad]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Body mass index, abdominal fatness, and heart failure incidence and mortality: A systematic review and dose-response meta-analysis of prospective studies]]></article-title>
<source><![CDATA[Circulation]]></source>
<year>2016</year>
<volume>133</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>639-49</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López Sánchez]]></surname>
<given-names><![CDATA[GF]]></given-names>
</name>
<name>
<surname><![CDATA[López Sánchez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz Suárez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Composición corporal y variabilidad de la frecuencia cardiaca: relaciones con edad, sexo, obesidad y actividad física]]></article-title>
<source><![CDATA[Sport TK]]></source>
<year>2015</year>
<volume>4</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>33-40</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rahman]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Habel]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Contrada]]></surname>
<given-names><![CDATA[RJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Poincaré plot indices as measures of sympathetic cardiac regulation: Responses to psychological stress and associations with pre-ejection period]]></article-title>
<source><![CDATA[Int J Psychophysiol]]></source>
<year>2018</year>
<volume>133</volume>
<page-range>79-90</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castaldo]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Melillo]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Bracale]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
<name>
<surname><![CDATA[Caserta]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Triassi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pecchia]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute mental stress assessment via short term HRV analysis in healthy adults: A systematic review with meta-analysis]]></article-title>
<source><![CDATA[Biomed Signal Process Control]]></source>
<year>2015</year>
<volume>18</volume>
<page-range>370-7</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cancino]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variabilidad del ritmo cardíaco ¿Por qué el caos puede ser saludable?]]></article-title>
<source><![CDATA[Pensar en movimiento]]></source>
<year>2011</year>
<volume>9</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>22-32</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="journal">
<collab>Task Force of the European Society of Cardiology</collab>
<collab>The North American Society of Pacing and Electrophysiology</collab>
<article-title xml:lang=""><![CDATA[Heart rate variability: standards of measurement, physiological interpretation and clinical use]]></article-title>
<source><![CDATA[Circulation]]></source>
<year>1996</year>
<volume>93</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1043-65</page-range></nlm-citation>
</ref>
<ref id="B33">
<label>33</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gronwald]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Rogers]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Hoos]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fractal Correlation Properties of Heart Rate Variability: A New Biomarker for Intensity Distribution in Endurance Exercise and Training Prescription?]]></article-title>
<source><![CDATA[Front. Physiol]]></source>
<year>2020</year>
<volume>11</volume>
<page-range>1152</page-range></nlm-citation>
</ref>
<ref id="B34">
<label>34</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gronwald]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Berk]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Altini]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Mourot]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Hoos]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Rogers]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Real-Time Estimation of Aerobic Threshold and Exercise Intensity Distribution Using Fractal Correlation Properties of Heart Rate Variability: A Single-Case Field Application in a Former Olympic Triathlete]]></article-title>
<source><![CDATA[Front Sports Act Living]]></source>
<year>2021</year>
<volume>3</volume>
<page-range>668812</page-range></nlm-citation>
</ref>
<ref id="B35">
<label>35</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[PS]]></given-names>
</name>
<name>
<surname><![CDATA[Jordan]]></surname>
<given-names><![CDATA[SW]]></given-names>
</name>
<name>
<surname><![CDATA[Hodson]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Chao]]></surname>
<given-names><![CDATA[AH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Waist-to-hip ratio is a better predictor than body mass index for morbidity in abdominally based breast reconstruction]]></article-title>
<source><![CDATA[Microsurgery]]></source>
<year>2018</year>
<volume>38</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>731-7</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
