<?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>0120-0011</journal-id>
<journal-title><![CDATA[Revista de la Facultad de Medicina]]></journal-title>
<abbrev-journal-title><![CDATA[rev.fac.med.]]></abbrev-journal-title>
<issn>0120-0011</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-00112020000100092</article-id>
<article-id pub-id-type="doi">10.15446/revfacmed.v68n1.69977</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Analysis of physical fitness according to sex, age, body mass index and level of physical activity in Spanish elementary school students]]></article-title>
<article-title xml:lang="es"><![CDATA[Análisis de la condición física según sexo, edad, índice de masa corporal y nivel de actividad física en estudiantes de primaria en España]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosa-Guillamón]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrillo-López]]></surname>
<given-names><![CDATA[Pedro José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Cantó]]></surname>
<given-names><![CDATA[Eliseo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Murcia Faculty of Education Department of Physical Education]]></institution>
<addr-line><![CDATA[Murcia ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>68</volume>
<numero>1</numero>
<fpage>92</fpage>
<lpage>99</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-00112020000100092&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-00112020000100092&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-00112020000100092&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Scientific evidence suggests that schoolchildren's quality of life is directly related to their physical fitness (PF).  Objective: To analyze the physical fitness of elementary school students according to age, sex, body mass index (BMI) and level of physical activity (PA).  Materials and methods: Cross-sectional and descriptive study conducted in 103 schoolchildren (aged 8-12 years) from Spain. PF and PA were measured using the ALPHA-fitness test battery and the Physician-based Assessment and Counseling for Exercise instrument, respectively. Participants were classified according to their level of PA (physically inactive vs. physically active) and their BMI (normal weight vs. overweight-obese). Parametric statistics were used for data analysis.  Results: Male participants had a better level of PF. In addition, it was found that PF slightly increases as age increases, regardless of the sex. Normal weight or physically active schoolchildren had better aerobic capacity and a healthier body composition.  Conclusion: Keeping optimal PF levels at any stage of life requires adopting a healthy lifestyle since childhood; therefore, it is necessary to encourage schoolchildren to do physical activity on their own.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción. La evidencia científica sugiere que la calidad de vida de los escolares se relaciona de forma directa con el estado de su condición física (CF).  Objetivo. Analizar la CF según edad, sexo, índice de masa corporal (IMC) y nivel de actividad física en estudiantes de primaria.  Materiales y métodos. Se realizó un estudio descriptivo transversal con 103 escolares entre 8 y 12 años de España. La CF se midió mediante la batería ALPHA-Fitness y la actividad física, con el cuestionario Physician-based Assessment and Counseling for Exercise. Los participantes se categorizaron según su nivel de actividad física (no activos versus activos) y su IMC (normo-peso versus sobrepeso-obesidad). Para el análisis se aplicó estadística paramétrica.  Resultados. Los varones tuvieron un mejor nivel de CF, pero en ambos sexos se observó un leve incremento de esta a medida que aumentaba la edad. Los escolares con normopeso o activos físicamente tuvieron una mejor capacidad aeróbica y una composición corporal más saludable.  Conclusión. Mantener niveles óptimos de CF a lo largo de la vida requiere de la adopción de un estilo de vida saludable desde la infancia, por tanto, es necesario promover la práctica autónoma de actividad física en los escolares.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Health]]></kwd>
<kwd lng="en"><![CDATA[Exercise, Physical]]></kwd>
<kwd lng="en"><![CDATA[Obesity (MeSH)]]></kwd>
<kwd lng="es"><![CDATA[Salud]]></kwd>
<kwd lng="es"><![CDATA[Ejercicio físico]]></kwd>
<kwd lng="es"><![CDATA[Obesidad (DeCS)]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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