<?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>S1981-46902013000400002</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Kinetic responses of running shoes submitted to prolonged use: a case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bianco]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acquesta]]></surname>
<given-names><![CDATA[Fernanda Michelone]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Azevedo]]></surname>
<given-names><![CDATA[Ana Paula da Silva]]></given-names>
</name>
</contrib>
<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[Barone]]></surname>
<given-names><![CDATA[Sandro]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mochizuki]]></surname>
<given-names><![CDATA[Luiz]]></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[Serrão]]></surname>
<given-names><![CDATA[Júlio Cerca]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A02">
<institution><![CDATA[,Universidade de São Paulo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2013</year>
</pub-date>
<volume>27</volume>
<numero>04</numero>
<fpage>521</fpage>
<lpage>529</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://educa.fcc.org.br/scielo.php?script=sci_arttext&amp;pid=S1981-46902013000400002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://educa.fcc.org.br/scielo.php?script=sci_abstract&amp;pid=S1981-46902013000400002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://educa.fcc.org.br/scielo.php?script=sci_pdf&amp;pid=S1981-46902013000400002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[The purpose of this study was to analyze the kinetic responses of running shoes submitted to prolonged use. Four shoes (R1, R2, T1 and T2) were used for 500 km except for T1 which was used for 1000 km. At every 100 km, Ground Reaction Force (GRF) and plantar pressure measurements were collected. In T2, there was a slight trend of increase in Loading Rate of the first peak of GRF with increasing distance. R1, R2 and T1 showed no trend of increase in Loading Rate values. Shoe T1 showed a slight tendency of increase in Loading Rate values when the distance was considered up to 1000 km. All running shoes showed a high variability in peak pressure values, but no trend of increase was observed. On the contrary, T1, T2 and R2 showed a trend of decrease in peak pressure values with increasing use. Therefore, there is no consistent evidence or trend of increase in Loading Rate and Peak Pressure values that would suggest worsening in external load attenuation.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[O objetivo foi analisar as respostas dinâmicas em calçados de corrida submetidos ao uso prolongado. Quatro calçados (R1, R2, T1 e T2) foram submetidos ao uso prolongado na corrida. R1, R2 e T2 foram usados por 500 km e T1 por 1000 km. A cada 100 km, foram coletadas a Força de Reação do Solo e a pressão plantar. Em T2, houve uma ligeira tendência de aumento na taxa de crescimento do primeiro pico de força vertical (TC1) com o aumento da quilometragem de uso. R1, R2 e T1 não mostraram tendência de aumento nos valores de TC1. O calçado T1 apresentou uma ligeira tendência de aumento nos valores de TC1 nas quilometragens de uso até 1.000 km. Todos os calçados de corrida mostraram alta variabilidade nos valores de pico de pressão, mas sem tendência clara de aumento. Pelo contrário, T1, T2 e R2 mostraram uma tendência de diminuição dos valores da pressão de pico com quilometragens crescentes de uso. Portanto, não há nenhuma evidência consistente ou tendência de aumento de nos valores de TC1 ou de pico de pressão que pudesse sugerir piora na atenuação de carga externa.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Biomechanics]]></kwd>
<kwd lng="en"><![CDATA[Footwear]]></kwd>
<kwd lng="en"><![CDATA[Cumulative Use]]></kwd>
<kwd lng="pt"><![CDATA[Biomecânica]]></kwd>
<kwd lng="pt"><![CDATA[Calçado]]></kwd>
<kwd lng="pt"><![CDATA[Uso Cumulativo]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  <font face="Arial, Helvetica, sans-serif"> <h2>Kinetic responses of running shoes submitted to  prolonged use: a case report.</h2> <h3>Respostas  din&acirc;micas em cal&ccedil;ados de corrida submetidos ao uso prolongado: um relato de  caso.</h3>     <p>&nbsp;</p> <h4>Roberto  Bianco, Fernanda Michelone Acquesta, Ana Paula da Silva Azevedo, Carina Helena  Wasem Fraga, Sandro Barone, Luiz Mochizuki, Alberto Carlos Amadio, J&uacute;lio Cerca  Serr&atilde;o</h4> </font>      ]]></body><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<source><![CDATA[Rev Bras Educ Fís Esporte]]></source>
<year></year>
<volume>25</volume>
<page-range>583-91</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
