<?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>1646-107X</journal-id>
<journal-title><![CDATA[Motricidade]]></journal-title>
<abbrev-journal-title><![CDATA[Motri.]]></abbrev-journal-title>
<issn>1646-107X</issn>
<publisher>
<publisher-name><![CDATA[Edições Desafio Singular]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1646-107X2020000500379</article-id>
<article-id pub-id-type="doi">10.6063/motricidade.20377</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Voleibol de Praia: Análise Temporal e Respostas Endócrinas de Atletas de Nível Nacional]]></article-title>
<article-title xml:lang="en"><![CDATA[Beach Volleyball: Temporal Analysis and Endocrine Responses of National Athletes]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[Yago Pessoa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vecchio]]></surname>
<given-names><![CDATA[Fabricio Boscolo Del]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lima]]></surname>
<given-names><![CDATA[Jefferson Muniz de]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castellano]]></surname>
<given-names><![CDATA[Lúcio Roberto Cançado]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Batista]]></surname>
<given-names><![CDATA[Gilmário Ricarte]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Federal da Paraíba  ]]></institution>
<addr-line><![CDATA[João Pessoa ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade Federal de Pelotas  ]]></institution>
<addr-line><![CDATA[Pelotas ]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>16</volume>
<numero>4</numero>
<fpage>379</fpage>
<lpage>385</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-107X2020000500379&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-107X2020000500379&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-107X2020000500379&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO Objetivou-se caracterizar os aspectos temporais e verificar o efeito agudo de um jogo de voleibol de praia na testosterona, cortisol e razão T:C de jovens atletas. Adicionalmente, verificou-se se as respostas hormonais eram diferentes entre bloqueadores e defensores. Participaram 16 atletas masculinos de nível nacional (idade 17±2,44 anos). Cada atleta realizou um jogo com regras oficiais, sendo filmado para análise subsequente. Utilizou-se saliva para medir os níveis de testosterona e cortisol, e calcular a razão testosterona/cortisol (razão T:C), utilizando o método ELISA. Assim, comparou-se a concentração desses hormônios no tempo (início do jogo, final do 1° set e final do jogo) e entre as funções. Em média o tempo total de jogo foi 30min e 49s (± 0,01s), com rallies de 6 s (± 01s) e tempo entre rallies de 20s (±02s). O cortisol apresentou tendência linear, aumentando ao longo do tempo e a razão T:C demonstrou tendência quadrática, reduzindo ao final do primeiro set e restabelecendo-se ao final da partida. A razão T:C de bloqueadores pré-pos jogo teve efeito trivial, porém negativo (d= &#8722;0,198). Aproximadamente 30 minutos de voleibol de praia tem efeito na concentração de testosterona, cortisol e razão T:C. Além disso, bloqueadores parecem levemente mais exigidos fisicamente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This study aimed to characterize temporal aspects and verify the acute effect of a beach volleyball game on testosterone, cortisol, and T: C ratio of young athletes. Also, to verify whether the hormonal responses were different between blockers and defenders. Sixteen male athletes of national-level participated (age 17±2.44 years). Each athlete played a game with official rules, being filmed for subsequent analysis. Saliva was used to measure testosterone and cortisol levels and calculate testosterone/cortisol ratio (T: C ratio) using ELISA method. The concentration of these hormones was compared over time (beginning, end of first set, and end of the match) and between functions. Usually, the total match duration was 30min and 49s (± 0.01s), with rallies of 6 seconds (± 01s) and time between rallies of 20 seconds (± 02s). Cortisol showed a linear trend, increasing over time, and T: C ratio showed a quadratic trend, decreasing at the end of the first set and reestablishing at the end of the match. Blockers T: C ratio of pre-post match had a trivial but negative effect (d= &#8722;0.198). Approximately 30 minutes of beach volleyball affects the concentration of testosterone, cortisol, and T: C ratio. Besides, blockers seem slightly more physically demanding.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Atletas]]></kwd>
<kwd lng="pt"><![CDATA[Marcadores biológicos]]></kwd>
<kwd lng="pt"><![CDATA[Biomarcadores]]></kwd>
<kwd lng="pt"><![CDATA[Desempenho atlético]]></kwd>
<kwd lng="en"><![CDATA[Athletes]]></kwd>
<kwd lng="en"><![CDATA[Biological markers]]></kwd>
<kwd lng="en"><![CDATA[Biomarkers]]></kwd>
<kwd lng="en"><![CDATA[Athletic performance]]></kwd>
</kwd-group>
</article-meta>
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