<?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>1981-4690</journal-id>
<journal-title><![CDATA[Revista Brasileira de Educação Física e Esporte]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Bras. Educ. Fís. Esporte]]></abbrev-journal-title>
<issn>1981-4690</issn>
<publisher>
<publisher-name><![CDATA[Escola de Educação Física e Esporte da Universidade de São Paulo  ]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1981-46902013000200002</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Comparação das variáveis eletromiográficas e cinemáticas entre uma corrida do "triathlon" e uma corrida prolongada]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparison of electromyographic and kinematics variables between a triathlon running and a prolonged running]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fraga]]></surname>
<given-names><![CDATA[Carina Helena Wasem]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bianco]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrão]]></surname>
<given-names><![CDATA[Júlio Cerca]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[Pedro Ernesto Sales de]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Amadio]]></surname>
<given-names><![CDATA[Alberto Carlos]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guimarães]]></surname>
<given-names><![CDATA[Antônio Carlos Stringhini]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vaz]]></surname>
<given-names><![CDATA[Marco Aurélio]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A02">
<institution><![CDATA[,Universidade de São Paulo Escola de Educação Física e Esporte ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidade Gama Filho  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidade Federal do Rio Grande do Sul Escola de Educação Física ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2013</year>
</pub-date>
<volume>27</volume>
<numero>02</numero>
<fpage>179</fpage>
<lpage>186</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://educa.fcc.org.br/scielo.php?script=sci_arttext&amp;pid=S1981-46902013000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://educa.fcc.org.br/scielo.php?script=sci_abstract&amp;pid=S1981-46902013000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://educa.fcc.org.br/scielo.php?script=sci_pdf&amp;pid=S1981-46902013000200002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[A corrida e o ciclismo realizados com uma mesma duração e intensidade podem apresentar diferentes respostas biomecânicas e metabólicas durante um protocolo de fadiga devido à sobrecarga mecânica e à especificidade técnica de cada modalidade. O objetivo do presente estudo foi avaliar os efeitos da fadiga proveniente de uma corrida de 10 km, precedida por ciclismo ou corrida, no padrão de passada e no sinal eletromiográfico (EMG). Nove triatletas do sexo masculino com tempo de prática superior a dois anos participaram do estudo. Os testes foram realizados em duas etapas: corrida do "triathlon" (40 km de ciclismo seguidos de 10 km de corrida) e corrida prolongada (corrida com duração igual ao tempo que o atleta levou para percorrer os 40 km de ciclismo, seguidos de mais 10 km de corrida). Uma análise cinemática (frequência e amplitude de passada) e eletromiográfica correspondentes às 10 passadas registradas no 5° km de cada corrida foi realizada. As curvas de EMG foram retificadas e filtradas para cálculo das curvas de RMS. A partir da média das curvas de EMG foram obtidos os valores de pico de RMS para os músculos reto femoral, vasto lateral e bíceps femoral. Maiores valores de frequência de passada e do sinal EMG do músculo bíceps femoral foram obtidos na corrida prolongada quando comparada com a corrida do "triathlon". Esses resultados parecem estar relacionados a maior fadiga proveniente da corrida prolongada devido às maiores exigências mecânicas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Running and cycling executed with the same duration and intensity may produce different biomechanical and metabolical responses during a fatigue protocol due to the mechanical overload and technical specificity of each modality. The purpose of this study was to evaluate the fatigue effects resultant from a 10 km running, preceded by cycling or running, on the stride pattern and electromyographic (EMG) signal. Nine male triathletes with over two years of experience participated in the study. The tests were carried out in two phases: triathlon running (40 km of cycling followed by 10 km of running) and prolonged running (running with equal duration of time of the 40 km of cycling, followed by more 10 km of running). Kinematic analysis (stride frequency and amplitude) and EMG analysis were performed on ten strides recorded at the 5th km and at the 10th km (final running period). The EMG curves were rectified and filtered prior to the calculation of the RMS curves. From the average of the ten EMG curves, the peak RMS values for the following muscles were obtained: rectus femoris, vastus lateralis, biceps femoris. Higher stride frequency and EMG signals were obtained for biceps femoris muscle on the prolonged compared to the triathlon running. These results seem related to a higher fatigue in the prolonged running due to it’s higher mechanical demands.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Corrida]]></kwd>
<kwd lng="pt"><![CDATA["Triathlon"]]></kwd>
<kwd lng="pt"><![CDATA[Fadiga]]></kwd>
<kwd lng="pt"><![CDATA[Eletromiografia]]></kwd>
<kwd lng="pt"><![CDATA[Cinemática]]></kwd>
<kwd lng="en"><![CDATA[Running]]></kwd>
<kwd lng="en"><![CDATA[Triathlon]]></kwd>
<kwd lng="en"><![CDATA[Fatigue]]></kwd>
<kwd lng="en"><![CDATA[Electromyography]]></kwd>
<kwd lng="en"><![CDATA[Kinematics]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  <font face="Arial, Helvetica, sans-serif"> <h2>Compara&ccedil;&atilde;o  das vari&aacute;veis eletromiogr&aacute;ficas e cinem&aacute;ticas entre uma corrida do  &quot;triathlon&quot; e uma corrida prolongada.</h2> <h3>Comparison of electromyographic and kinematics  variables between a triathlon running and a prolonged running.</h3>     <p>&nbsp;</p> <h4>Carina  Helena Wasem Fraga, Roberto Bianco, J&uacute;lio Cerca Serr&atilde;o, Pedro Ernesto Sales  de Souza, Alberto Carlos Amadio, Ant&ocirc;nio Carlos Stringhini Guimar&atilde;es, Marco  Aur&eacute;lio Vaz    <br> </h4> </font>      ]]></body><back>
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