<?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>2174-5145</journal-id>
<journal-title><![CDATA[Revista Española de Nutrición Humana y Dietética]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Esp Nutr Hum Diet]]></abbrev-journal-title>
<issn>2174-5145</issn>
<publisher>
<publisher-name><![CDATA[Academia Española de Nutrición y Dietética]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2174-51452020000400008</article-id>
<article-id pub-id-type="doi">10.14306/renhyd.24.4.1074</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Relación entre las características de la Composición Corporal y el Rendimiento Físico en atletas hombres de karate: Un estudio observacional]]></article-title>
<article-title xml:lang="en"><![CDATA[Relationship between Body Composition characteristics and Physical Performance in male karate athletes: An observational study]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ojeda-Aravena]]></surname>
<given-names><![CDATA[Alex]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Valenzuela]]></surname>
<given-names><![CDATA[Tomás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-García]]></surname>
<given-names><![CDATA[José Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Los Lagos Departamento de Ciencias de la Actividad Física Grupo de Investigación del Laboratorio de Desempeño Humano, Calidad de Vida y Bienestar]]></institution>
<addr-line><![CDATA[Osorno ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Castilla-La Mancha Facultad de Ciencias del Deporte Laboratorio de Entrenamiento Deportivo]]></institution>
<addr-line><![CDATA[Toledo ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Santiago de Chile Escuela de Ciencias de la Actividad Física, el Deporte y la Salud ]]></institution>
<addr-line><![CDATA[Santiago ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Santo Tomás Facultad de Salud Escuela de Ciencias del Deporte]]></institution>
<addr-line><![CDATA[Santiago ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>24</volume>
<numero>4</numero>
<fpage>366</fpage>
<lpage>373</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S2174-51452020000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S2174-51452020000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S2174-51452020000400008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción  El propósito de este estudio fue examinar la relación entre las características de la composición corporal y los componentes del rendimiento físico en atletas de karate hombres de Chile.  Material y Métodos  Diseño observacional con 18 atletas hombres que compiten habitualmente en diferentes categorías de edad en competiciones regionales y nacionales. Se evaluó la Masa Corporal (MC), la Masa Grasa (MG), % Masa Grasa (%MG), Masa Muscular (MM), el salto Squat Jump (SJ), el Countermovement Jump (CMJ), la velocidad lineal en 0-5 metros, el Cambio de Dirección (COD) y la prueba 20 Meters Shuttle Run (20MSR).  Resultados  La muestra presentó las siguientes características: 16,4 (3,5) años; 167,3 (7,3) cm; 69,5 (11,8) kg; 3 (1) años de experiencia. Entre los principales hallazgos de este estudio en términos de promedio se documentó un incremento de la MC y la MM a medida que avanza la edad. La MG fluctuó y se documentó una menor MG y %MG en la categoría 16-17 años. En términos del rendimiento físico (RF) en SJ, CMJ, COD, se observó un rendimiento superior en la categoría 16-17 años. Además, se documentaron relaciones significativas (p&lt;0,05) entre la MG y SJ (r=-0,49), CMJ (r=-0,55) y 10-M (r=0,53). Así también entre el %MG y SJ (r=-0,61), CMJ (r=-0,64). En tanto relaciones moderadas a bajas se documentaron entre la MM y las variables analizadas.  Conclusiones  Los datos del presente estudio muestran que la masa grasa y el % de masa grasa se relacionan más que la masa muscular y la masa corporal con el rendimiento físico en atletas de karate. Los técnicos podrían considerar estrategias para disminuir la masa grasa y mantener la masa muscular para optimizar el rendimiento en atletas de karate.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction  The purpose of this study was to examine the relationship between body composition characteristics and components of physical performance in male karate athletes from Chile.  Material and Methods  Observational design with 18 male athletes competing in different age categories in regional and national competitions. Body Mass (MC), Fat Mass (MG), % Fat Mass (%MG), Muscle Mass (MM), Squat Jump (SJ), Countermovement Jump (CMJ), linear speed at 0-5 meters, Change of Direction (COD) and the 20 Meters Shuttle Run (20MSR) test were evaluated.  Results  The sample was made up of 18 athletes with the following characteristics: 16.4 (3.5) years; 167.3 (7.3) cm; 69.5 (11.8) kg; 3 (1) years of experience regularly. Among the main findings of this study in terms of average, an increase in MC and MM was documented as age advances. MG fluctuated and a lower MG and %MG were documented in the 6-17 years category. In terms of the physical performance (RF) in SJ, CMJ, COD, superior performance was observed in the 16-17 years category. Furthermore, significant relationships (p&lt;0.05) were documented between MG and SJ (r=-0.49), CMJ (r=-0.55) and 10-M (r=0.53). So also between %MG and SJ (r=-0.61), CMJ (r=-0.64). As moderate to low relationships were documented between the MM and the variables analyzed.  Conclusions  The data from the present study show that fat mass and % fat mass will be related more than muscle mass and body mass with physical performance in youth karate athletes. Coaches may consider strategies to decrease fat mass and maintain muscle mass to optimize performance in karate athletes.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Índice de Masa Corporal]]></kwd>
<kwd lng="es"><![CDATA[Músculos]]></kwd>
<kwd lng="es"><![CDATA[Tejido Adiposo]]></kwd>
<kwd lng="es"><![CDATA[Ejercicio Físico]]></kwd>
<kwd lng="es"><![CDATA[Rendimiento Atlético]]></kwd>
<kwd lng="es"><![CDATA[Artes Marciales]]></kwd>
<kwd lng="es"><![CDATA[Karate]]></kwd>
<kwd lng="en"><![CDATA[Body Mass Index]]></kwd>
<kwd lng="en"><![CDATA[Muscles]]></kwd>
<kwd lng="en"><![CDATA[Adipose Tissue]]></kwd>
<kwd lng="en"><![CDATA[Exercise]]></kwd>
<kwd lng="en"><![CDATA[Athletic Performance]]></kwd>
<kwd lng="en"><![CDATA[Martial Arts]]></kwd>
<kwd lng="en"><![CDATA[Karate]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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