<?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>0035-0052</journal-id>
<journal-title><![CDATA[Revista mexicana de pediatría]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. pediatr.]]></abbrev-journal-title>
<issn>0035-0052</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Pediatría A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-00522019000500185</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Relación entre fuerza muscular y estado de nutrición en escolares mexicanos]]></article-title>
<article-title xml:lang="en"><![CDATA[Relationship between muscle strength and nutritional status in Mexican schoolchildren]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Alonzo]]></surname>
<given-names><![CDATA[Salvador Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera-Sosa]]></surname>
<given-names><![CDATA[Juan Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Gutiérrez]]></surname>
<given-names><![CDATA[Perla Zukey]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gastelum-Cuadras]]></surname>
<given-names><![CDATA[Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guedea-Delgado]]></surname>
<given-names><![CDATA[Julio César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nájera-Longoria]]></surname>
<given-names><![CDATA[Raúl Josué]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Chihuahua Facultad de Ciencias de la Cultura Física ]]></institution>
<addr-line><![CDATA[Chihuahua ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2019</year>
</pub-date>
<volume>86</volume>
<numero>5</numero>
<fpage>185</fpage>
<lpage>189</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-00522019000500185&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-00522019000500185&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-00522019000500185&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Objetivo:  Analizar la relación entre la fuerza muscular y el estado de nutrición en escolares entre seis y 12 años de edad.  Material y métodos:  Participaron 447 escolares (248 niños y 199 niñas) pertenecientes a una escuela pública estatal de la ciudad de Chihuahua, México. Edad de 8.8 ± 1.8 años. Para medir la fuerza se utilizaron dos pruebas físicas estandarizadas: 1) flexión de brazos y 2) realización de abdominales. El estado de nutrición se evaluó por índice de masa corporal y circunferencia de cintura.  Resultados:  Los escolares con obesidad realizaron menos repeticiones, tanto en la prueba de flexión de brazos como en abdominales, en comparación con los estudiantes con peso normal. Se encontró una correlación inversa entre mayor sobrepeso/obesidad con las pruebas de fuerza.  Conclusiones:  En escolares, la fuerza muscular se correlaciona de manera negativa con mayor sobrepeso y obesidad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Objective:  To analyze the relationship between muscle strength and nutritional status in schoolchildren aged six to 12 years.  Material and methods:  447 schoolchildren (248 boys and 199 girls), aged 8.8 ± 1.8 years, from a public school in the city of Chihuahua, Mexico participated. To measure muscle strength, two standardized physical tests were used: 1) flexion of arms and 2) performing abdominals. Nutrition status was assessed by body mass index and waist circumference.  Results:  Schoolchildren with obesity performed fewer repetitions, both in the arm and abdominal flexion test, compared to students with normal weight. An inverse correlation was found between greater overweight / obesity with muscle strength tests.  Conclusions:  In schoolchildren, muscle strength correlates negatively with overweight and obesity.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Fuerza]]></kwd>
<kwd lng="es"><![CDATA[composición corporal]]></kwd>
<kwd lng="es"><![CDATA[escolares]]></kwd>
<kwd lng="es"><![CDATA[salud]]></kwd>
<kwd lng="en"><![CDATA[Strength]]></kwd>
<kwd lng="en"><![CDATA[body composition]]></kwd>
<kwd lng="en"><![CDATA[schoolchildren]]></kwd>
<kwd lng="en"><![CDATA[health]]></kwd>
</kwd-group>
</article-meta>
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