<?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>1870-3542</journal-id>
<journal-title><![CDATA[Revista mexicana de física E]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fís. E]]></abbrev-journal-title>
<issn>1870-3542</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-35422008000100007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Energética de la contracción muscular en el régimen de operación ecológico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Díaz]]></surname>
<given-names><![CDATA[M.H]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,CFIE-IPN Departamento de Fomento a la Investigación Educativa ]]></institution>
<addr-line><![CDATA[México D.F.]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2008</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2008</year>
</pub-date>
<volume>54</volume>
<numero>1</numero>
<fpage>47</fpage>
<lpage>50</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-35422008000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-35422008000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-35422008000100007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En el presente trabajo se estudia la contracción muscular utilizando como herramienta teórica la termodinámica irreversible lineal y llamado régimen de operación ecológico. De los resultados obtenidos se concluye que el régimen de operación ecológico no representa un buen compromiso entre potencia y eficiencia del musculo. Esto sugiere que el régimen de operación ecológico no es una buena herramienta para modelar la energética muscular]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this work muscular contraction is studied using linear irreversible thermodynamics and the ecological regime of operation as a theoretical frameworks. From the results obtained, it is concluded that the ecological regime of operation does not represent a good approach between potency and the efficiency of the muscle. This suggests that the ecological regime of operation is not a good theoretical framework to model the muscular energy]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Función ecológica]]></kwd>
<kwd lng="es"><![CDATA[relaciones fenomenológicas]]></kwd>
<kwd lng="es"><![CDATA[termodinámica irreversible de primer orden]]></kwd>
<kwd lng="en"><![CDATA[Ecological regime]]></kwd>
<kwd lng="en"><![CDATA[linear irreversible thermodynamics]]></kwd>
<kwd lng="en"><![CDATA[phenomenological relations]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Ense&ntilde;anza</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Energ&eacute;tica de la contracci&oacute;n muscular en el r&eacute;gimen de operaci&oacute;n ecol&oacute;gico</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>M.H. Ram&iacute;rez D&iacute;az</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Departamento de Fomento a la Investigaci&oacute;n Educativa, CFIE&#150;IPN, </i><i>Unidad profesional Adolfo L&oacute;pez Mateos, Av. Wilfrido Massieu s/n, esq. Av. Luis Enrique Erro, Zacatenco, </i><i>Deleg. Gustavo A. Madero, M&eacute;xico, D.F. 07738</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 14 de junio de 2007    <br> Aceptado el 25 de septiembre de 2007</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">En el presente trabajo se estudia la contracci&oacute;n muscular utilizando como herramienta te&oacute;rica la termodin&aacute;mica irreversible lineal y llamado r&eacute;gimen de operaci&oacute;n ecol&oacute;gico. De los resultados obtenidos se concluye que el r&eacute;gimen de operaci&oacute;n ecol&oacute;gico no representa un buen compromiso entre potencia y eficiencia del musculo. Esto sugiere que el r&eacute;gimen de operaci&oacute;n ecol&oacute;gico no es una buena herramienta para modelar la energ&eacute;tica muscular.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Funci&oacute;n ecol&oacute;gica; relaciones fenomenol&oacute;gicas; termodin&aacute;mica irreversible de primer orden.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">In this work muscular contraction is studied using linear irreversible thermodynamics and the ecological regime of operation as a theoretical frameworks. From the results obtained, it is concluded that the ecological regime of operation does not represent a good approach between potency and the efficiency of the muscle. This suggests that the ecological regime of operation is not a good theoretical framework to model the muscular energy.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Ecological regime; linear irreversible thermodynamics; phenomenological relations.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 8719.Ff</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmfe/v54n1/v54n1a7.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. M. Santill&aacute;n y F Angulo&#150;Brown, <i>J. theor. Biol. </i><b>189 </b>(1997) 391.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8449122&pid=S1870-3542200800010000700001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">2. M. Santill&aacute;n, L.A. Arias&#150;Hernandez y F. Angulo&#150;Brown, <i>Il Nuovo Cimento D </i><b>19 </b>(1997) 99.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8449123&pid=S1870-3542200800010000700002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">3. M. Santill&aacute;n, <i>J. Theor. Biol. </i><b>199 </b>(1999) 105.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8449124&pid=S1870-3542200800010000700003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">4. F. Angulo Brown, <i>J. Appl. Phys. </i><b>69</b> (1991) 7465.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8449125&pid=S1870-3542200800010000700004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">5. R.K. Josephson, <i>Ann. Rev. Physiol. </i><b>55</b> (1993) 527.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8449126&pid=S1870-3542200800010000700005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">6. S.R. Caplan y A. Essig, <i>Bioenergetics and Liner Nonequilibrium Thermodynamics the Steady State </i>(Harvard Univerity Press, Cambridge MA, 1983).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8449127&pid=S1870-3542200800010000700006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> ]]></body><back>
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</article>
