<?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>1692-7273</journal-id>
<journal-title><![CDATA[Revista Ciencias de la Salud]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Cienc. Salud]]></abbrev-journal-title>
<issn>1692-7273</issn>
<publisher>
<publisher-name><![CDATA[Editorial Universidad del Rosario]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1692-72732018000100082</article-id>
<article-id pub-id-type="doi">10.12804/revistas.urosario.edu.co/revsalud/a.6492</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Modeling and Simulation of Prosthetic Gait Using a 3-D Model of Transtibial Prosthesis]]></article-title>
<article-title xml:lang="es"><![CDATA[Modelado y simulación de la marcha protésica usando modelo en 3D de una prótesis transtibal]]></article-title>
<article-title xml:lang="pt"><![CDATA[Modelagem e simulação da marcha protética usando modelo em 3D de uma prótese transtibial]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luengas-Contreras]]></surname>
<given-names><![CDATA[Lely Adriana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Camargo-Casallas]]></surname>
<given-names><![CDATA[Esperanza]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guardiola]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Distrital Francisco José de Caldas Faculty of Technology ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>16</volume>
<numero>1</numero>
<fpage>82</fpage>
<lpage>100</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S1692-72732018000100082&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S1692-72732018000100082&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S1692-72732018000100082&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  There are over 10 million amputees in the world, amputation below the knee, or transtibial amputation, is extremely common. Due to the physiological changes that affect transtibial amputees, the biomechanics of their gait is altered and may significantly affect their mobility.  Materials and methods:  To determine the dynamic behavior of transtibial amputees and generate knowledge about their biomechanical behavior to facilitate their physical rehabilitation, it was proposed to study prosthetic gait using simulations generated by a computational model. A model of human gait was constructed using Lagrangian analysis to describe the interchange of energy that characterizes this set of movements based on the Lagrange analysis. In addition, a mathematical model (block diagram) of an active transtibial prostheses was obtained through 3D design using carried out using Solidworks® sofware. This model was analyzed in Matlab® to simulate the use of the prosthesis. To observe the prosthetic gait, the model of normal gait was altered to replace one of the legs using the model of the prosthesis.  Results:  The results obtained through this modeling agreed with the results of previous studies with respect to both articular range and spatial-temporal parameters. A kinematic analysis of the model's behavior showed that the prosthesis provides support to the body and allows for an effective gait in the absence of the body part, and the data produced by this analysis of the model's gait pattern correspond to data in the existing literature.  Discussion:  In recent years, the usefulness of simulations in the medical context has been observed and verified. This particular simulation should be useful to students who are learning about the biomechanics of prosthetic gait as well as to medical doctors working in this field.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  el número de amputados en el mundo supera los diez millones, y la amputación transtibial (por debajo de la rodilla) es bastante recurrente. Debido a los cambios fisiológicos que presenta esta amputación, la mecánica de la marcha se ve alterada y puede llegar a afectar significativamente la movilidad del sujeto. Con el fin de conocer el comportamiento dinámico de los amputados transtibiales, entender su conducta biomecánica y ayudar en el proceso de su rehabilitación física, se propuso estudiar la marcha protésica desde simulaciones generadas de un modelo computacional.  Materiales y métodos:  se construyó un modelo de la marcha humana haciendo uso del intercambio de energía que se presenta en este movimiento, a partir del análisis de Lagrange. Se obtuvo el modelado matemático (diagrama de bloques) de una prótesis transtibial activa a partir del diseño en 3D realizado con el software Solidworks®; este modelo se procesó en Matlab® con el fin de emular el uso de la prótesis. En el modelo de la marcha normal obtenido se reemplazó una de las piernas por el modelo de la prótesis para observar la marcha protésica.  Resultados:  de acuerdo con lo observado en otros estudios, la prótesis proporciona soporte al cuerpo, ya que los datos arrojados por el modelo del patrón de la marcha obtenido concuerdan con los datos existentes en la literatura.  Conclusión:  esta propuesta de simulación permite el aprendizaje del estudiante y del médico respecto al comportamiento biomecánico de la marcha protésica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Introdução:  o número de amputados no mundo, supera os dez milhões, e a amputação transtibial (embaixo do joelho), é bastante recorrente. Devido às mudanças fisiológicas que apresenta esta amputação, a mecânica da marcha vê-se alterada e pode chegar a afetar significativamente a mobilidade do sujeito. Com o objetivo de conhecer o comportamento dinâmico dos amputados transtibiais, entender a sua conduta biomecânica e ajudar no processo de reabilitação física, se propôs estudar a marcha protética desde simulações geradas de um modelo computacional.  Materiais e métodos:  construiu-se um modelo da marcha humana fazendo uso do intercâmbio de energia que se apresenta neste movimento a partir da análise de Lagrange. Se obteve a modelagem matemática (diagrama de bloques) de uma prótese transtibial ativa a partir do desenho em 3D realizado com o software Solidworks®; este modelo se processou em Matlab® com o objetivo de emular o uso da prótese. No modelo da marcha normal obtido se substituiu uma das pernas pelo modelo da prótese para observar a marcha protética.  Resultados:  de acordo com o observado em outros estudos, a prótese proporciona suporte o corpo, devido a que os dados obtidos pelo modelo de patrão da marcha concordam com os dados existentes em literatura.  Conclusão:  esta proposta de simulação permite a aprendizagem do estudante e do médico respeito ao comportamento biomecânico da marcha protética.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Amputation]]></kwd>
<kwd lng="en"><![CDATA[gait]]></kwd>
<kwd lng="en"><![CDATA[prosthesis]]></kwd>
<kwd lng="en"><![CDATA[models]]></kwd>
<kwd lng="es"><![CDATA[amputación]]></kwd>
<kwd lng="es"><![CDATA[marcha]]></kwd>
<kwd lng="es"><![CDATA[prótesis]]></kwd>
<kwd lng="es"><![CDATA[modelos]]></kwd>
<kwd lng="pt"><![CDATA[amputação]]></kwd>
<kwd lng="pt"><![CDATA[marcha]]></kwd>
<kwd lng="pt"><![CDATA[prótese]]></kwd>
<kwd lng="pt"><![CDATA[modelos]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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