<?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>2306-4102</journal-id>
<journal-title><![CDATA[Acta ortopédica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta ortop. mex]]></abbrev-journal-title>
<issn>2306-4102</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Ortopedia y Traumatología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2306-41022021000100056</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Medición de la fuerza de prensión y de las pinzas de la mano en pacientes sanos]]></article-title>
<article-title xml:lang="en"><![CDATA[Measurement of the pressure force and hand clamps in healthy patients]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez-Alonso]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz-López]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lázaro-Huerta]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guamán-González]]></surname>
<given-names><![CDATA[MO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Unidad Médica de Alta Especialidad en Traumatología y Ortopedia Lomas Verdes Servicio de Cirugía de Mano]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Unidad Médica de Alta Especialidad en Traumatología y Ortopedia Lomas Verdes Servicio de Cirugía de Mano]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Unidad Médica de Alta Especialidad en Traumatología y Ortopedia Lomas Verdes ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2021</year>
</pub-date>
<volume>35</volume>
<numero>1</numero>
<fpage>56</fpage>
<lpage>60</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2306-41022021000100056&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2306-41022021000100056&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2306-41022021000100056&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  La caracterización biomecánica de agarre supone la determinación de las diferentes variables cinemáticas y dinámicas que afectan sus distintas fases: transporte, formación del agarre y manipulación; su relación con las características antropométricas del sujeto y las propias del objeto. La fuerza de contacto en los dedos durante la realización de agarres bidigitales o multidigitales pero que involucran únicamente uso de las falanges distales (agarre tipo pinza) y el agarre de potencia cilíndrico son de los más empleados para las actividades diarias. La medición de la fuerza de presión (FPM) es un elemento esencial para seguimiento durante el crecimiento, lesiones, rehabilitación y ensayos terapéuticos.  Material y métodos:  Estudio descriptivo, prospectivo, transversal con 61 pacientes sin patología de miembro torácico, 30 hombres y 31 mujeres, con rango de edad de 20 a 59 años, se realizaron mediciones antropométricas y prueba de fuerza (kg/fuerza). Se analizaron las variables estadísticamente con «r» de Pearson y U de Mann-Whitney.  Resultados:  La fuerza de prensión de la mano y la pinza 1 de la mano dominante como la no dominante está correlacionada con el peso, talla, porcentaje de grasa corporal y circunferencia de la muñeca, la FPM y la pinza 1 tanto en la mano dominante como en la no dominante es mayor en los hombres que en las mujeres, con p &lt; 0.05.  Conclusiones:  La FPM promedio de la mano dominante es mayor que en la no dominante para hombres y mujeres, relacionado con el peso, talla, porcentaje de grasa corporal y circunferencia de la muñeca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  The biomechanical characterization of grip involves the determination of the different kinematic and dynamic variables that affect its different phases: transport, grip formation and manipulation, as well as its relationship with the anthropometric characteristics of the subject and those of the object. The contact force in the fingers during the making of bidigital or multi-digital grips but involving only the use of distal phalanges (grip type clamp) and cylindrical power grip are among the most used for daily activities. Hand grip force measurement is an essential element for follow-up during growth, injury, rehabilitation and therapeutic trials.  Material and methods:  Descriptive, prospective, cross-sectional study with 61 patients without upper extremity pathology, 30 male, 31 female, with age range of 20 to 59 years, anthropometric measurements and Force test (kg/strength) were performed. The variables were statistically analyzed with Pearson&#8217;s «r» and Mann-Whitney&#8217;s U.  Results:  The hand grip and clamp 1 Force of the dominant hand as non-dominant is correlated with weight, size, body fat percentage and wrist circumference, HGF and clamp 1 in both the dominant and non-dominant hand is higher in men than in women, with p &lt; 0.05.  Conclusions:  The average HGF of the dominant hand is higher than in the non-dominant for men and women. This is related to weight, size, body fat percentage and wrist circumference.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Mano]]></kwd>
<kwd lng="es"><![CDATA[prensión]]></kwd>
<kwd lng="es"><![CDATA[fuerza]]></kwd>
<kwd lng="es"><![CDATA[medición]]></kwd>
<kwd lng="es"><![CDATA[sano]]></kwd>
<kwd lng="en"><![CDATA[Hand]]></kwd>
<kwd lng="en"><![CDATA[grasp]]></kwd>
<kwd lng="en"><![CDATA[strength]]></kwd>
<kwd lng="en"><![CDATA[measurement]]></kwd>
<kwd lng="en"><![CDATA[healthy]]></kwd>
</kwd-group>
</article-meta>
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