<?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>0212-1611</journal-id>
<journal-title><![CDATA[Nutrición Hospitalaria]]></journal-title>
<abbrev-journal-title><![CDATA[Nutr. Hosp.]]></abbrev-journal-title>
<issn>0212-1611</issn>
<publisher>
<publisher-name><![CDATA[Grupo Arán]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0212-16112023000400006</article-id>
<article-id pub-id-type="doi">10.20960/nh.04498</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Influencia de la actividad en la imagen corporal en preadolescentes y adolescentes: importancia del índice de masa corporal como factor de confusión]]></article-title>
<article-title xml:lang="en"><![CDATA[Influence of exercise in the body image of preadolescents and adolescents: importance of the body mass index as a factor of confusion]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carballo-Afonso]]></surname>
<given-names><![CDATA[Rocío]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Diz]]></surname>
<given-names><![CDATA[José Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Redondo-Gutiérrez]]></surname>
<given-names><![CDATA[Laura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ayán-Pérez]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade de Vigo Facultade de Ciencias da Educación e do Deporte Departamento de Didácticas Especiais]]></institution>
<addr-line><![CDATA[Pontevedra ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Servicio Gallego de Salud-UVIGO Instituto de Investigación Sanitaria Galicia Sur Departamento de Bioloxía Funcional e Ciencias da Saúde]]></institution>
<addr-line><![CDATA[Vigo ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidade de Vigo Facultade de Ciencias da Educación e do Deporte ]]></institution>
<addr-line><![CDATA[Vigo ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>40</volume>
<numero>3</numero>
<fpage>503</fpage>
<lpage>510</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0212-16112023000400006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0212-16112023000400006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0212-16112023000400006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: los adolescentes son el grupo más vulnerable frente a las distorsiones en la percepción de la imagen. Ello les conduce frecuentemente a una insatisfacción corporal que puede afectar negativamente a su autoestima. La práctica de actividad física (AF) podría ayudar a solventar este problema.  Objetivos: analizar la influencia que la cantidad de AF realizada tiene sobre la autopercepción de la imagen corporal en población pre y adolescente, teniendo en cuenta factores de confusión que pudieran afectar a esta relación.  Métodos: estudio transversal con 822 participantes de entre 9 y 16 años. Se determinó la prevalencia de AF, su índice de masa corporal (IMC) y su condición física (CF) objetiva y percibida. Se empleó el pictograma de Stunkard para determinar el grado de insatisfacción corporal.  Resultados: se determinó que existe una satisfacción generalizada con la propia imagen corporal con independencia de la edad y el sexo. Se encontraron asociaciones significativas de baja magnitud entre la imagen corporal percibida y la cantidad de AF, la CF percibida y la CF objetiva. La AF no influyó en la satisfacción corporal cuando se ajustó en base al IMC, que fue la variable que presentó correlaciones más elevadas con la autopercepción (r = 0,713) y la propia satisfacción (r = 0,576).  Conclusiones: se determinó que existe una satisfacción generalizada con la propia imagen corporal en la población pre y adolescente objeto de estudio. La cantidad de AF no se mostró como una variable de gran influencia sobre la autopercepción y la satisfacción corporal, al contrario que el IMC.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: adolescents are the group most vulnerable to distortions in the perception of their image. This often leads to body dissatisfaction that can negatively affect their self-esteem. The practice of physical activity (PA) could help solve this problem.  Objectives: to analyze the influence that the amount of PA performed has on the self-perception of body image in the pre and adolescent population while taking into account confounding factors that could affect this relationship.  Methods: a cross-sectional study of 822 participants aged 9 to 16 years was conducted. The prevalence of PA, their body mass index (BMI), and their objective and perceived physical condition (PC) were determined. The Stunkard pictogram was used to determine the degree of body dissatisfaction.  Results: a generalized satisfaction with own body image was found regardless of age and sex. Low-magnitude significant associations were found between perceived body image and the amount of PA, perceived PC, and objective PC. PA did not influence body satisfaction when adjusted for BMI, which was the variable that presented the highest correlations with self-perception (r = 0.713) and self-satisfaction (r = 0.576).  Conclusions: a generalized satisfaction with one's own body image was identified in the pre and adolescent population under study. The amount of PA was not shown to be a variable with great influence on self-perception and body satisfaction, contrary to BMI.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Autopercepción física]]></kwd>
<kwd lng="es"><![CDATA[Condición física]]></kwd>
<kwd lng="es"><![CDATA[Índice de masa muscular]]></kwd>
<kwd lng="es"><![CDATA[Autoestima]]></kwd>
<kwd lng="es"><![CDATA[Adolescentes]]></kwd>
<kwd lng="en"><![CDATA[Physical self-perception]]></kwd>
<kwd lng="en"><![CDATA[Physical condition]]></kwd>
<kwd lng="en"><![CDATA[Body mass index]]></kwd>
<kwd lng="en"><![CDATA[Self-esteem]]></kwd>
</kwd-group>
</article-meta>
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