<?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>2529-850X</journal-id>
<journal-title><![CDATA[Journal of Negative and No Positive Results]]></journal-title>
<abbrev-journal-title><![CDATA[JONNPR]]></abbrev-journal-title>
<issn>2529-850X</issn>
<publisher>
<publisher-name><![CDATA[Research and Science S.L.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2529-850X2021000300008</article-id>
<article-id pub-id-type="doi">10.19230/jonnpr.3699</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Revisión sistemática sobre la estructura interna y externa del press de banca]]></article-title>
<article-title xml:lang="en"><![CDATA[Systematic review of the internal and external structure of the bench press]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Paniagua]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Franco-García]]></surname>
<given-names><![CDATA[Juan Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chavarrías-Olmedo]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Gómez]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Extremadura HEME Research Group ]]></institution>
<addr-line><![CDATA[Cáceres ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>6</volume>
<numero>3</numero>
<fpage>557</fpage>
<lpage>568</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S2529-850X2021000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S2529-850X2021000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S2529-850X2021000300008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo. Se realizó una revisión de la literatura con el objetivo de agrupar el conocimiento actual sobre el análisis de la estructura interna (actividad muscular), y estructura externa (cinemática) en el ejercicio de press de banca para una mejor comprensión del ejercicio.  Métodos. Se realizó una búsqueda en la base de datos PUBMED, sobre artículos que realizaran una investigación en la actividad muscular y cinemática del ejercicio de press de banca. Se obtuvieron un total de 40 artículos. Una vez analizados, se aplicaron los criterios de inclusión y exclusión, finalmente 8 artículos fueron incluidos.  Resultados. Los músculos: pectoral mayor, deltoides anterior y tríceps braquial se han estudiado como los motores primarios del ejercicio, observando la respuesta de la actividad muscular en cuanto a cambios de intensidad, estímulos externos, orden de ejercicios y subfases del movimiento. Sobresalen el pectoral y tríceps como músculos que presentan una mayor actividad durante el ejercicio. En la mayoría de los estudios, un aumento de la intensidad conlleva a la aparición de la denominada &#8220;sticking región&#8221;, donde aparece una disminución de los parámetros cinemáticos durante el levantamiento de la barra, acompañado por una activación limitada del pectoral y el deltoides anterior.  Conclusiones. Hay un mayor conocimiento de la estructura interna, realizada metodológicamente de distintas formas por lo que es necesaria la unificación de los procedimientos para mejorar el conocimiento del press de banca. Sin embargo, hay muy poca información sobre aspectos cinemáticos del movimiento y su estudio, así como sobre las relaciones entre estos parámetros y la actividad muscular con el objetico de obtener la relación causa efecto entre la actividad muscular y el movimiento que esta produce.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective. A review of the literature was carried out with the aim of grouping the current knowledge on the analysis of the internal structure (muscle activity) and external structure (kinematic) studied together in the bench press exercise for a proper understanding of the phenomenon.  Methods. A search was made in the PUBMED database of articles that carried out an investigation on the muscle activity and kinematic of the bench press exercise. A total of 40 articles were obtained. Once analyzed, the inclusion and exclusion criteria were applied, a total of 8 articles were included.  Results. The pectoralis major, anterior deltoids, and triceps brachii muscles have been studied as the primary movers of exercise, observing the response of muscle activity in terms of changes in intensity, external stimuli, order of exercises, and subphases of movement. The pectoral and triceps stand out as muscles that present greater activity during exercise. In most studies, an increase in intensity leads to the appearance of the so-called sticking region, where a decrease in kinematic parameters appears during the lifting of the bar, accompanied by limited activation of the pectoral and anterior deltoid.  Conclusions. There is a greater knowledge of the internal structure, carried out methodologically in different ways, so it is necessary to unify the procedures to improve knowledge of the phenomenon. However, there is no much studies focus on kinematic knowledge of movement and its study, as well as establish the relationships between these parameters and muscle activity in order to obtain the causeeffect relationship between muscle activity and the movement it produces.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Actividad muscular]]></kwd>
<kwd lng="es"><![CDATA[cinemática]]></kwd>
<kwd lng="es"><![CDATA[cinética]]></kwd>
<kwd lng="es"><![CDATA[electromiografía]]></kwd>
<kwd lng="es"><![CDATA[entrenamiento de fuerza]]></kwd>
<kwd lng="es"><![CDATA[sticking región]]></kwd>
<kwd lng="en"><![CDATA[Muscle activity]]></kwd>
<kwd lng="en"><![CDATA[kinematic]]></kwd>
<kwd lng="en"><![CDATA[kinetic]]></kwd>
<kwd lng="en"><![CDATA[electromiography]]></kwd>
<kwd lng="en"><![CDATA[strength training]]></kwd>
<kwd lng="en"><![CDATA[sticking region]]></kwd>
</kwd-group>
</article-meta>
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