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  <front>
    <journal-meta>
      <journal-id journal-id-type="nlm-ta">Arq Bras Cardiol</journal-id>
      <journal-id journal-id-type="publisher-id">abc</journal-id>
      <journal-title-group>
        <journal-title>Arquivos Brasileiros de Cardiologia</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Arq. Bras. Cardiol.</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">0066-782X</issn>
      <issn pub-type="epub">1678-4170</issn>
      <publisher>
        <publisher-name>Sociedade Brasileira de Cardiologia - SBC</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v3">WPwSJRW9Nwktzm8mFyfsKPF</article-id>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v2">S0066-782X2020000600762</article-id>
      <article-id pub-id-type="publisher-id">abc.20200318</article-id>
      <article-id pub-id-type="doi">10.36660/abc.20200318</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Minieditorial</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Influ&#234;ncia da Atividade F&#237;sica na Hipertens&#227;o Arterial em Trabalhadores</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-2806-743X</contrib-id>
          <name>
            <surname>Cunha</surname>
            <given-names>Cl&#225;udio L. Pereira da</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">
            <sup>1</sup>
          </xref>
        </contrib>
      </contrib-group>
      <aff id="aff1">
        <label>1</label>
        <institution content-type="orgname">Universidade Federal do Paran&#225;</institution>
        <addr-line>
          <named-content content-type="city">Curitiba</named-content>
          <named-content content-type="state">PR</named-content>
        </addr-line>
        <country country="BR">Brasil</country>
        <institution content-type="original">Universidade Federal do Paran&#225; (UFPR),Curitiba, PR &#8211; Brasil</institution>
      </aff>
      <author-notes>
        <corresp id="c01"> Correspond&#234;ncia: Cl&#225;udio L. Pereira da Cunha &#8226; Universidade Federal do Paran&#225; - Clinica M&#233;dica - Rua Olavo Bilac, 181. CEP 80440-040, Curitiba, PR &#8211; Brasil E-mail: <email>cpcunha@cardiol.br</email>
				</corresp>
      </author-notes>
      <pub-date date-type="pub" publication-format="electronic">
        <day>01</day>
        <month>06</month>
        <year>2020</year>
      </pub-date>
      <pub-date date-type="collection" publication-format="electronic">
        <month>05</month>
        <year>2020</year>
      </pub-date>
      <volume>114</volume>
      <issue>5</issue>
      <fpage>762</fpage>
      <lpage>763</lpage>
      <permissions>
        <license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/" xml:lang="en">
          <license-p> This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. </license-p>
        </license>
      </permissions>
      <kwd-group xml:lang="pt">
        <kwd>Hipertens&#227;o</kwd>
        <kwd>Exerc&#237;cio</kwd>
        <kwd>Fatores de Risco</kwd>
        <kwd>Atividade F&#237;sica</kwd>
        <kwd>Epidemiologia</kwd>
        <kwd>Trabalhadores</kwd>
        <kwd>Limpeza Urbana</kwd>
      </kwd-group>
      <counts>
        <fig-count count="0"/>
        <table-count count="0"/>
        <equation-count count="0"/>
        <ref-count count="13"/>
        <page-count count="2"/>
      </counts>
    </article-meta>
  </front>
  <body>
    <p>A atividade f&#237;sica (AF) regular &#233; um dos mais importantes fatores para a preven&#231;&#227;o prim&#225;ria da hipertens&#227;o arterial (HA) e para melhora da sobrevida a longo prazo desses pacientes.<sup><xref ref-type="bibr" rid="B1">1</xref></sup> Seus benef&#237;cios se espalham para al&#233;m da HA, propiciando melhoras tamb&#233;m aos portadores de doen&#231;a arterial coronariana, diabetes, dislipidemias, disfun&#231;&#227;o renal, depress&#227;o, doen&#231;a pulmonar obstrutiva, osteoartrite, entre outras.<sup><xref ref-type="bibr" rid="B1">1</xref></sup></p>
    <p>&#8220;Atividade f&#237;sica&#8221;, de modo literal, se refere a qualquer movimento do corpo; no entanto, em estudos epidemiol&#243;gicos que avaliam seu contexto na sa&#250;de, tem rela&#231;&#227;o com atividades que produzam aumentos substanciais do consumo de oxig&#234;nio (O<sub>2</sub>). A AF pode ser realizada tanto durante o trabalho quanto no lazer e recrea&#231;&#227;o, sendo todas as modalidades utilizadas no estudo dos efeitos da AF na sa&#250;de cardiovascular.<sup><xref ref-type="bibr" rid="B2">2</xref></sup> A AF desenvolvida para melhorar a sa&#250;de ou obter benef&#237;cios no desempenho &#233; considerada &#8220;exerc&#237;cio&#8221;.<sup><xref ref-type="bibr" rid="B2">2</xref></sup></p>
    <p>Os exerc&#237;cios s&#227;o classificados em &#8220;aer&#243;bicos&#8221; e &#8220;resistivos&#8221; (ou de resist&#234;ncia). Os exerc&#237;cios aer&#243;bicos primariamente estressam o sistema de transporte de O<sub>2</sub> e incluem atividades como caminhadas, corridas, nata&#231;&#227;o e ciclismo. Os exerc&#237;cios de resist&#234;ncia, por sua vez, estressam o sistema muscular esquel&#233;tico, como o levantamento de peso; podem ser resistivos din&#226;micos ou est&#225;ticos (isom&#233;tricos). O treinamento com exerc&#237;cios realizados repetidamente podem aumentar o desempenho do sistema cardiovascular (treinamento com exerc&#237;cios aer&#243;bicos) ou do sistema muscular esquel&#233;tico (treinamento com exerc&#237;cios resistivos).<sup><xref ref-type="bibr" rid="B3">3</xref></sup> Tais divis&#245;es dos tipos de AF s&#227;o relativamente arbitr&#225;rias, visto que os exerc&#237;cios t&#234;m componentes aer&#243;bicos ou resistivos predominantes mas n&#227;o absolutos. A atividade aer&#243;bica da corrida, por exemplo, tamb&#233;m provoca melhora da for&#231;a muscular das pernas, enquanto o exerc&#237;cio resistivo de levantamento de peso tamb&#233;m cursa com envolvimento do sistema de entrega do O<sub>2</sub>, um componente aer&#243;bico.<sup><xref ref-type="bibr" rid="B4">4</xref></sup></p>
    <p>O treinamento aer&#243;bico reduz a press&#227;o arterial (PA) casual de pr&#233;-hipertensos e hipertensos. Al&#233;m disso, reduz a PA na vig&#237;lia de hipertensos e diminui a PA em situa&#231;&#245;es de estresse f&#237;sico, mental e psicol&#243;gico.<sup><xref ref-type="bibr" rid="B5">5</xref></sup> O treinamento aer&#243;bico &#233; recomendado como forma preferencial de exerc&#237;cio para a preven&#231;&#227;o e tratamento da HA, com grau de recomenda&#231;&#227;o I, n&#237;vel de evid&#234;ncia A, na 7&#170; Diretriz Brasileira de Hipertens&#227;o Arterial.<sup><xref ref-type="bibr" rid="B5">5</xref></sup> Al&#233;m da aptid&#227;o aer&#243;bica, outros componentes da aptid&#227;o f&#237;sica est&#227;o associados ao progn&#243;stico; estudos com for&#231;a e pot&#234;ncia muscular tamb&#233;m t&#234;m demonstrado associa&#231;&#245;es &#224; mortalidade. As diretrizes recomendam a pr&#225;tica regular e combinada dos exerc&#237;cios aer&#243;bicos e resistidos<sup><xref ref-type="bibr" rid="B6">6</xref>,<xref ref-type="bibr" rid="B7">7</xref></sup></p>
    <p>A AF pode ser realizada no trabalho, no seu deslocamento, em trabalhos dom&#233;sticos ou em pr&#225;ticas f&#237;sicas de lazer.<sup><xref ref-type="bibr" rid="B8">8</xref></sup>N&#227;o h&#225; consenso sobre o benef&#237;cio &#224; sa&#250;de que cada uma dessas modalidades de AF pode propiciar, qual a contribui&#231;&#227;o que cada tipo pode oferecer ou at&#233; mesmo quais preju&#237;zos podem determinar.<sup><xref ref-type="bibr" rid="B8">8</xref>,<xref ref-type="bibr" rid="B9">9</xref></sup></p>
    <p>Nesta edi&#231;&#227;o dos <italic>Arquivos Brasileiros de Cardiologia</italic>, Ribeiro Jr. e Fernandes<sup><xref ref-type="bibr" rid="B10">10</xref></sup> analisam o efeito cumulativo de diferentes modalidades de AF na HA de trabalhadores. Estudam 1.070 participantes vinculados a 2 empresas com caracter&#237;sticas de exig&#234;ncia f&#237;sica bem distintas: 624 trabalhadores em limpeza urbana e 446 em ind&#250;stria de cal&#231;ados. Em todos os trabalhadores &#233; avaliada sua AF em diferentes modalidades: ocupacional (AFO), dom&#233;stica (AFD) e de lazer (AFL). Analisa-se a ocorr&#234;ncia de HA, considerando como principal vari&#225;vel o n&#250;mero de modalidades de AF que o trabalhador executava (AFO, AFD e/ou AFL), e conclui-se que h&#225; efeito cumulativo das diversas formas de AF na prote&#231;&#227;o &#224; HA.</p>
    <p>Nesta pesquisa<sup><xref ref-type="bibr" rid="B10">10</xref></sup>s&#227;o inclu&#237;das classes profissionais que caracterizam muito bem comportamentos opostos em rela&#231;&#227;o ao grau de AFO, envolvendo grande n&#250;mero de trabalhadores bra&#231;ais da limpeza urbana e outros pouco ativos na ind&#250;stria manufatureira convencional. Todavia, n&#227;o se avaliou a AF de deslocamento, mais facilmente analis&#225;vel e frequentemente valorizada em tais estudos,<sup><xref ref-type="bibr" rid="B8">8</xref></sup> e incluiu-se a AFD, presente no mundo real, mas com quantifica&#231;&#227;o mais dif&#237;cil, notadamente nesta amostra populacional com quase 80% do sexo masculino. Na an&#225;lise multivariada, a AF foi avaliada em suas tr&#234;s modalidades (AFO, AFD e ADL), e os trabalhadores ativos nos tr&#234;s tipos de AF compuseram o primeiro grupo, os ativos em duas modalidades formaram outro grupo e, no terceiro, ficaram os trabalhadores inativos ou ativos em apenas um tipo de AF. Essa divis&#227;o &#233; pass&#237;vel de cr&#237;ticas: por exemplo, n&#227;o imposs&#237;vel no mundo real, um empregado da f&#225;brica de cal&#231;ados (pouca AFO), pouco envolvido em AFD, mas que faz 1 hora de exerc&#237;cios 5 vezes na semana (300 minutos na semana), seria classificado para o terceiro grupo (ativo em apenas uma modalidade de AF, junto com os inativos).<sup><xref ref-type="bibr" rid="B10">10</xref></sup></p>
    <p>A contribui&#231;&#227;o da AFO no controle da HA &#233; defendida pela maioria dos estudiosos,<sup><xref ref-type="bibr" rid="B2">2</xref>,<xref ref-type="bibr" rid="B8">8</xref>,<xref ref-type="bibr" rid="B11">11</xref></sup>mas n&#227;o &#233; uma opini&#227;o consensual.<sup><xref ref-type="bibr" rid="B9">9</xref>,<xref ref-type="bibr" rid="B12">12</xref>,<xref ref-type="bibr" rid="B13">13</xref></sup>V&#225;rios estudos epidemiol&#243;gicos t&#234;m mostrado que o risco para doen&#231;a cardiovascular e morte pode aumentar com AFO.<sup><xref ref-type="bibr" rid="B12">12</xref></sup>Esses efeitos contrastantes da AF na sa&#250;de t&#234;m sido chamados de &#8220;paradoxo da atividade f&#237;sica na sa&#250;de&#8221;.<sup><xref ref-type="bibr" rid="B9">9</xref></sup>O risco aumentado na AFO tem sido mostrado com maior frequ&#234;ncia em trabalhadores com baixa renda, baixa aptid&#227;o cardiorrespirat&#243;ria e doen&#231;as preexistentes, como HA e doen&#231;a coronariana.<sup><xref ref-type="bibr" rid="B13">13</xref></sup> Holtermann et al.<sup><xref ref-type="bibr" rid="B9">9</xref></sup>indicam que algumas diferen&#231;as entre AFL e AFO podem justificar a diferen&#231;a dos resultados observados, incluindo: 1) AFO com intensidade muito baixa e dura&#231;&#227;o muito longa para melhorar a forma f&#237;sica e a sa&#250;de cardiovascular; 2) AFO com levantamento de pesos ou posturas est&#225;ticas, que podem aumentar a PA; 3) AFO realizada sem tempo de recupera&#231;&#227;o suficiente; 4) AFO realizada com pouco controle pelo trabalhador; e 5) AFO que aumenta os n&#237;veis de inflama&#231;&#227;o. O tipo errado de AF pode ser ruim para a sa&#250;de, tanto no contexto de AFO como AFL.<sup><xref ref-type="bibr" rid="B13">13</xref></sup>Assim, muita for&#231;a mec&#226;nica pode causar uma les&#227;o musculoesquel&#233;tica, atividade muito frequente pode levar &#224; fadiga e muito tempo em p&#233; pode facilitar o aparecimento de varizes nos membros inferiores. Ao contr&#225;rio, muito pouca for&#231;a pode causar perda &#243;ssea e muscular, exerc&#237;cios pouco frequentes podem determinar um descondicionamento cardiorrespirat&#243;rio ou altera&#231;&#227;o da sa&#250;de cardiometab&#243;lica.<sup><xref ref-type="bibr" rid="B13">13</xref></sup>Assim, os benef&#237;cios da atividade f&#237;sica, tanto no trabalho como no lazer, s&#243; se manifestam quando os v&#225;rios aspectos da AF est&#227;o bem ajustados, calibrados. As v&#225;rias dimens&#245;es da AF (intensidade, dura&#231;&#227;o, frequ&#234;ncia de posturas e movimentos distintos) afetam diferentes sistemas e fun&#231;&#245;es do corpo (capacidade aer&#243;bica, for&#231;a muscular, movimentos, balan&#231;o, coordena&#231;&#227;o). Todos esses aspectos da AF no trabalho dever&#227;o levar ao encontro de seu &#8220;ponto perfeito&#8221;, para que venham a permitir o seu efeito de promover sa&#250;de.<sup><xref ref-type="bibr" rid="B13">13</xref></sup></p>
    <p>Em conclus&#227;o, a AF &#233; ben&#233;fica &#224; sa&#250;de e ajuda a controlar a PA, principalmente com a pr&#225;tica de exerc&#237;cios aer&#243;bicos, mas tamb&#233;m com os exerc&#237;cios resistivos. O efeito cumulativo de diferentes modalidades da AF, como estudado por Ribeiro Jr. &amp; Fernandes,<sup><xref ref-type="bibr" rid="B10">10</xref></sup> contribui para a prote&#231;&#227;o &#224; HA. A AFO deve ser avaliada com cautela e profundidade, de maneira a se encontrar situa&#231;&#245;es &#243;timas das atividades f&#237;sicas, de forma a utiliz&#225;-la em benef&#237;cio da sa&#250;de, e n&#227;o como um mecanismo delet&#233;rio para o trabalhador.</p>
  </body>
  <back>
    <ref-list>
      <title>Refer&#234;ncias</title>
      <ref id="B1">
        <label>1</label>
        <mixed-citation>1. Sharman JE, La Gerche A, Coombes JS. Exercise and cardiovascular risk in patients with hypertension. Am J Hypertens. 2015;28(2):147-58.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Sharman</surname>
              <given-names>JE</given-names>
            </name>
            <name>
              <surname>La Gerche</surname>
              <given-names>A</given-names>
            </name>
            <name>
              <surname>Coombes</surname>
              <given-names>JS</given-names>
            </name>
          </person-group>
          <article-title>Exercise and cardiovascular risk in patients with hypertension</article-title>
          <source>Am J Hypertens</source>
          <year>2015</year>
          <volume>28</volume>
          <issue>2</issue>
          <fpage>147</fpage>
          <lpage>158</lpage>
        </element-citation>
      </ref>
      <ref id="B2">
        <label>2</label>
        <mixed-citation>2. Thompson PD, Baggish A. Exercise and sports cardiology. In: Mann DL, Zipes DP, Libby P, Bonow RO. Braunwald&#8217;s heart disease: a textbook of cardiovascular medicine. 10th ed. Philadelphia: Elsevier Saunders; 2015. p. 1771-8.</mixed-citation>
        <element-citation publication-type="book">
          <person-group person-group-type="author">
            <name>
              <surname>Thompson</surname>
              <given-names>PD</given-names>
            </name>
            <name>
              <surname>Baggish</surname>
              <given-names>A</given-names>
            </name>
          </person-group>
          <chapter-title>Exercise and sports cardiology</chapter-title>
          <person-group person-group-type="author">
            <name>
              <surname>Mann</surname>
              <given-names>DL</given-names>
            </name>
            <name>
              <surname>Zipes</surname>
              <given-names>DP</given-names>
            </name>
            <name>
              <surname>Libby</surname>
              <given-names>P</given-names>
            </name>
            <name>
              <surname>Bonow</surname>
              <given-names>RO</given-names>
            </name>
          </person-group>
          <source>Braunwald&#8217;s heart disease: a textbook of cardiovascular medicine</source>
          <edition>10th</edition>
          <publisher-loc>Philadelphia</publisher-loc>
          <publisher-name>Elsevier Saunders</publisher-name>
          <year>2015</year>
          <fpage>1771</fpage>
          <lpage>1778</lpage>
        </element-citation>
      </ref>
      <ref id="B3">
        <label>3</label>
        <mixed-citation>3. Thompson PD. Exercise prescription and proscription for patients with coronary artery disease. Circulation. 2005;112(15):2354-63.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Thompson</surname>
              <given-names>PD</given-names>
            </name>
          </person-group>
          <article-title>Exercise prescription and proscription for patients with coronary artery disease</article-title>
          <source>Circulation</source>
          <year>2005</year>
          <volume>112</volume>
          <issue>15</issue>
          <fpage>2354</fpage>
          <lpage>2363</lpage>
        </element-citation>
      </ref>
      <ref id="B4">
        <label>4</label>
        <mixed-citation>4. Ghorayeb N, Stein R, Daher DJ, Silveira AD, Oliveira Filho JA, Ritt LEF, et al. Atualiza&#231;&#227;o da Diretriz em Cardiologia do Esporte e do Exerc&#237;cio da Sociedade Brasileira de Cardiologia e da Sociedade Brasileira de Medicina do Exerc&#237;cio e Esporte &#8211; 2019. Arq Bras Cardiol. 2019:112(3):326-8.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Ghorayeb</surname>
              <given-names>N</given-names>
            </name>
            <name>
              <surname>Stein</surname>
              <given-names>R</given-names>
            </name>
            <name>
              <surname>Daher</surname>
              <given-names>DJ</given-names>
            </name>
            <name>
              <surname>Silveira</surname>
              <given-names>AD</given-names>
            </name>
            <name>
              <surname>Oliveira</surname>
              <given-names>JA</given-names>
              <suffix>Filho</suffix>
            </name>
            <name>
              <surname>Ritt</surname>
              <given-names>LEF</given-names>
            </name>
            <etal>et al</etal>
          </person-group>
          <article-title>Atualiza&#231;&#227;o da Diretriz em Cardiologia do Esporte e do Exerc&#237;cio da Sociedade Brasileira de Cardiologia e da Sociedade Brasileira de Medicina do Exerc&#237;cio e Esporte &#8211; 2019</article-title>
          <source>Arq Bras Cardiol</source>
          <year>2019</year>
          <volume>112</volume>
          <issue>3</issue>
          <fpage>326</fpage>
          <lpage>328</lpage>
        </element-citation>
      </ref>
      <ref id="B5">
        <label>5</label>
        <mixed-citation>5. Malachias MVB, Souza WKSB, Plavnik FL, Rodrigues CIS, Brand&#227;o AA, Neves MFT, et al. 7&#170; Diretriz Brasileira de Hipertens&#227;o Arterial. Arq Bras Cardiol. 2016;107(3 Suppl 3):1-83.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Malachias</surname>
              <given-names>MVB</given-names>
            </name>
            <name>
              <surname>Souza</surname>
              <given-names>WKSB</given-names>
            </name>
            <name>
              <surname>Plavnik</surname>
              <given-names>FL</given-names>
            </name>
            <name>
              <surname>Rodrigues</surname>
              <given-names>CIS</given-names>
            </name>
            <name>
              <surname>Brand&#227;o</surname>
              <given-names>AA</given-names>
            </name>
            <name>
              <surname>Neves</surname>
              <given-names>MFT</given-names>
            </name>
            <etal>et al</etal>
          </person-group>
          <article-title>7&#170; Diretriz Brasileira de Hipertens&#227;o Arterial</article-title>
          <source>Arq Bras Cardiol</source>
          <year>2016</year>
          <volume>107</volume>
          <issue>3</issue>
          <supplement>Suppl 3</supplement>
          <fpage>1</fpage>
          <lpage>83</lpage>
        </element-citation>
      </ref>
      <ref id="B6">
        <label>6</label>
        <mixed-citation>6. Pr&#233;coma DB, Oliveira GMM, Sim&#227;o AF, Dutra OP, Coelho OR, Izar MCO, et al. Atualiza&#231;&#227;o da Diretriz de Preven&#231;&#227;o Cardiovascular da Sociedade Brasileira de Cardiologia &#8211; 2019. Arq Bras Cardiol. 2019;113(4):787-891.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Pr&#233;coma</surname>
              <given-names>DB</given-names>
            </name>
            <name>
              <surname>Oliveira</surname>
              <given-names>GMM</given-names>
            </name>
            <name>
              <surname>Sim&#227;o</surname>
              <given-names>AF</given-names>
            </name>
            <name>
              <surname>Dutra</surname>
              <given-names>OP</given-names>
            </name>
            <name>
              <surname>Coelho</surname>
              <given-names>OR</given-names>
            </name>
            <name>
              <surname>Izar</surname>
              <given-names>MCO</given-names>
            </name>
            <etal>et al</etal>
          </person-group>
          <article-title>Atualiza&#231;&#227;o da Diretriz de Preven&#231;&#227;o Cardiovascular da Sociedade Brasileira de Cardiologia &#8211; 2019</article-title>
          <source>Arq Bras Cardiol</source>
          <year>2019</year>
          <volume>113</volume>
          <issue>4</issue>
          <fpage>787</fpage>
          <lpage>891</lpage>
        </element-citation>
      </ref>
      <ref id="B7">
        <label>7</label>
        <mixed-citation>7. Whelton PK, Carey RM, Aronow WS, Casey Jr DE, Collins KJ, Himmelfarb CD, et al. 2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the prevention, detection, evaluation and management of High Blood Pressure in adults: a report of the American College of Cardiology/American Heart Association Task Force on clinical practice guidelines. Hypertension. 2018;71(6):e13-e115.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Whelton</surname>
              <given-names>PK</given-names>
            </name>
            <name>
              <surname>Carey</surname>
              <given-names>RM</given-names>
            </name>
            <name>
              <surname>Aronow</surname>
              <given-names>WS</given-names>
            </name>
            <name>
              <surname>Casey</surname>
              <given-names>DE</given-names>
              <suffix>Jr</suffix>
            </name>
            <name>
              <surname>Collins</surname>
              <given-names>KJ</given-names>
            </name>
            <name>
              <surname>Himmelfarb</surname>
              <given-names>CD</given-names>
            </name>
            <etal>et al</etal>
          </person-group>
          <article-title>2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the prevention, detection, evaluation and management of High Blood Pressure in adults: a report of the American College of Cardiology/American Heart Association Task Force on clinical practice guidelines</article-title>
          <source>Hypertension</source>
          <year>2018</year>
          <volume>71</volume>
          <issue>6</issue>
          <fpage>e13</fpage>
          <lpage>e115</lpage>
        </element-citation>
      </ref>
      <ref id="B8">
        <label>8</label>
        <mixed-citation>8. Hu G, Jousilahti P, Antikainen R, Tuomilehto J. Occupational, commuting and leisure-time physical activity in relation to cardiovascular mortality among finnish subjects with hypertension. Am J Hypertens. 2007;20(12):1242-50.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Hu</surname>
              <given-names>G</given-names>
            </name>
            <name>
              <surname>Jousilahti</surname>
              <given-names>P</given-names>
            </name>
            <name>
              <surname>Antikainen</surname>
              <given-names>R</given-names>
            </name>
            <name>
              <surname>Tuomilehto</surname>
              <given-names>J</given-names>
            </name>
          </person-group>
          <article-title>Occupational, commuting and leisure-time physical activity in relation to cardiovascular mortality among finnish subjects with hypertension</article-title>
          <source>Am J Hypertens</source>
          <year>2007</year>
          <volume>20</volume>
          <issue>12</issue>
          <fpage>1242</fpage>
          <lpage>1250</lpage>
        </element-citation>
      </ref>
      <ref id="B9">
        <label>9</label>
        <mixed-citation>9. Holtermann A, Krause N, van der Beek AJ, Straker L. The physical activity paradox: six reasons why occupational physical activity (OPA) does not confer the cardiovascular health benefits that leisure time physical activity does. Br J Sports Med. 2018;52(3):149-50.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Holtermann</surname>
              <given-names>A</given-names>
            </name>
            <name>
              <surname>Krause</surname>
              <given-names>N</given-names>
            </name>
            <name>
              <surname>van der Beek</surname>
              <given-names>AJ</given-names>
            </name>
            <name>
              <surname>Straker</surname>
              <given-names>L</given-names>
            </name>
          </person-group>
          <article-title>The physical activity paradox: six reasons why occupational physical activity (OPA) does not confer the cardiovascular health benefits that leisure time physical activity does</article-title>
          <source>Br J Sports Med</source>
          <year>2018</year>
          <volume>52</volume>
          <issue>3</issue>
          <fpage>149</fpage>
          <lpage>150</lpage>
        </element-citation>
      </ref>
      <ref id="B10">
        <label>10</label>
        <mixed-citation>10. Ribeiro Jr. UES, Fernandes RCP. Hipertens&#227;o Arterial em trabalhadores: O efeito cumulativo das dimens&#245;es da atividade f&#237;sica sobre este agravo; Arq Bras Cardiol. 2020; 114(5):755-761.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Ribeiro</surname>
              <given-names>UES</given-names>
              <suffix>Jr.</suffix>
            </name>
            <name>
              <surname>Fernandes</surname>
              <given-names>RCP</given-names>
            </name>
          </person-group>
          <article-title>Hipertens&#227;o Arterial em trabalhadores: O efeito cumulativo das dimens&#245;es da atividade f&#237;sica sobre este agravo</article-title>
          <source>Arq Bras Cardiol</source>
          <year>2020</year>
          <volume>114</volume>
          <issue>5</issue>
          <fpage>755</fpage>
          <lpage>761</lpage>
        </element-citation>
      </ref>
      <ref id="B11">
        <label>11</label>
        <mixed-citation>11. Salmon J, Owen N, Bauman A, Schmitz MK, Booth M. Leisure-time, occupational, and household physical activity among professional, skilled, and less-skilled workers and homemakers. Prev Med. 2000;30(3):191-9.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Salmon</surname>
              <given-names>J</given-names>
            </name>
            <name>
              <surname>Owen</surname>
              <given-names>N</given-names>
            </name>
            <name>
              <surname>Bauman</surname>
              <given-names>A</given-names>
            </name>
            <name>
              <surname>Schmitz</surname>
              <given-names>MK</given-names>
            </name>
            <name>
              <surname>Booth</surname>
              <given-names>M</given-names>
            </name>
          </person-group>
          <article-title>Leisure-time, occupational, and household physical activity among professional, skilled, and less-skilled workers and homemakers</article-title>
          <source>Prev Med</source>
          <year>2000</year>
          <volume>30</volume>
          <issue>3</issue>
          <fpage>191</fpage>
          <lpage>199</lpage>
        </element-citation>
      </ref>
      <ref id="B12">
        <label>12</label>
        <mixed-citation>12. Li J, Loerbroks A, Angerer P. Physical activity and risk of cardiovascular disease: what does the new epidemiological evidence show? Curr Opin Cardiol. 2013;28(5):575-83.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Li</surname>
              <given-names>J</given-names>
            </name>
            <name>
              <surname>Loerbroks</surname>
              <given-names>A</given-names>
            </name>
            <name>
              <surname>Angerer</surname>
              <given-names>P</given-names>
            </name>
          </person-group>
          <article-title>Physical activity and risk of cardiovascular disease: what does the new epidemiological evidence show?</article-title>
          <source>Curr Opin Cardiol</source>
          <year>2013</year>
          <volume>28</volume>
          <issue>5</issue>
          <fpage>575</fpage>
          <lpage>583</lpage>
        </element-citation>
      </ref>
      <ref id="B13">
        <label>13</label>
        <mixed-citation>13. Straker L, Mathiassen SE, Holtermann A. The &#8220;Goldilocks Principle&#8221;: designing physical activity at work to be &#8220;just right&#8221; for promoting health. Br J Sports Med. 2018;52(13):818-9.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Straker</surname>
              <given-names>L</given-names>
            </name>
            <name>
              <surname>Mathiassen</surname>
              <given-names>SE</given-names>
            </name>
            <name>
              <surname>Holtermann</surname>
              <given-names>A</given-names>
            </name>
          </person-group>
          <article-title>The &#8220;Goldilocks Principle&#8221;: designing physical activity at work to be &#8220;just right&#8221; for promoting health</article-title>
          <source>Br J Sports Med</source>
          <year>2018</year>
          <volume>52</volume>
          <issue>13</issue>
          <fpage>818</fpage>
          <lpage>819</lpage>
        </element-citation>
      </ref>
    </ref-list>
    <fn-group>
      <fn fn-type="other">
        <p>Minieditorial referente ao artigo: Hipertens&#227;o Arterial em Trabalhadores: O Efeito Cumulativo das Dimens&#245;es da Atividade F&#237;sica sobre esse Agravo</p>
      </fn>
    </fn-group>
  </back>
  <sub-article article-type="translation" id="TRen" xml:lang="en">
    <front-stub>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Short Editorial</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Influence of Physical Activity on Arterial Hypertension in Workers</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-2806-743X</contrib-id>
          <name>
            <surname>Cunha</surname>
            <given-names>Cl&#225;udio L. Pereira da</given-names>
          </name>
          <xref ref-type="aff" rid="aff1001">
            <sup>1</sup>
          </xref>
        </contrib>
      </contrib-group>
      <aff id="aff1001">
        <country country="BR">Brazil</country>
        <institution content-type="original">Universidade Federal do Paran&#225; (UFPR),1 Curitiba, PR &#8211; Brazil</institution>
      </aff>
      <author-notes>
        <corresp id="c01001"> Mailing Address: Cl&#225;udio L. Pereira da Cunha &#8226; Universidade Federal do Paran&#225; - Clinica M&#233;dica - Rua Olavo Bilac, 181. Postal Code 80440-040, Curitiba, PR &#8211; Brazil E-mail: cpcunha@cardiol.br </corresp>
      </author-notes>
      <kwd-group xml:lang="en">
        <kwd>Hypertension</kwd>
        <kwd>Exercise</kwd>
        <kwd>Risk Factors</kwd>
        <kwd>Physical Activity</kwd>
        <kwd>Epidemiology</kwd>
        <kwd>Workers</kwd>
        <kwd>Urban Cleaning</kwd>
      </kwd-group>
    </front-stub>
    <body>
      <p>Regular physical activity (PA) is one of the most important factors for the primary prevention of arterial hypertension (AH) and for improving the long-term survival of these patients.<sup><xref ref-type="bibr" rid="B1">1</xref></sup> Its benefits extend beyond AH, also providing improvements to patients with coronary artery disease, diabetes, dyslipidemia, kidney dysfunction, depression, obstructive pulmonary disease, and osteoarthritis, among others.<sup><xref ref-type="bibr" rid="B1">1</xref></sup></p>
      <p>&#8220;Physical activity&#8221; literally refers to any movement of the body; however, in epidemiological studies that assess its health context, it is related to activities that produce substantial increases in oxygen (O<sub>2</sub>) consumption. PA can be performed both at work and during leisure and recreation, with all modalities being used to study the effects of PA on cardiovascular health.<sup><xref ref-type="bibr" rid="B2">2</xref></sup> The PA developed to improve health or to obtain performance benefits is considered &#8220;exercise&#8221;.<sup><xref ref-type="bibr" rid="B2">2</xref></sup></p>
      <p>The exercises are classified as &#8220;aerobic&#8221; and &#8220;resistance&#8221; exercises. Aerobic exercises primarily stress the O<sub>2</sub> transportation system and include activities such as walking, running, swimming and cycling. Resistance exercises, in turn, stress the muscular skeletal system, such as weightlifting; they can be dynamic or static exercises (isometric). Training with exercises that are performed repeatedly can improve the cardiovascular system performance (training with aerobic exercises) or the muscular skeletal system (training with resistance exercises).<sup><xref ref-type="bibr" rid="B3">3</xref></sup> Such divisions of the types of PA are relatively arbitrary, considering the exercises have predominant but not absolute aerobic or resistance components. The aerobic activity of running, for instance, also improves the muscular strength of the legs, while the resistance weightlifting exercise also involves the participation of the O<sub>2</sub> delivery system, an aerobic component.<sup><xref ref-type="bibr" rid="B4">4</xref></sup></p>
      <p>The aerobic training reduces the casual blood pressure (BP) in pre-hypertensive and hypertensive individuals. Moreover, it reduces BP during wakefulness in hypertensive patients and decreases BP in situations of physical, mental and psychological stress.<sup><xref ref-type="bibr" rid="B5">5</xref></sup> Aerobic training is recommended as the preferred form of exercise for the prevention and treatment of AH, with a class of recommendation I, level of evidence A, in the 7<sup>th</sup> Brazilian Guideline of Arterial Hypertension.<sup><xref ref-type="bibr" rid="B5">5</xref></sup> In addition to aerobic fitness, other components of physical fitness are associated with the prognosis; studies with muscle strength and power have also shown associations with mortality. The guidelines recommend the regular and combined practice of aerobic and resistance exercises.<sup><xref ref-type="bibr" rid="B6">6</xref>,<xref ref-type="bibr" rid="B7">7</xref></sup></p>
      <p>The PA can be performed at work, in displacement, during housework or during leisure practices.<sup><xref ref-type="bibr" rid="B8">8</xref></sup> There is no consensus about the health benefits that each of these types of PA can provide, what contribution each type can offer or even what harms they can determine.<sup><xref ref-type="bibr" rid="B8">8</xref>,<xref ref-type="bibr" rid="B9">9</xref></sup></p>
      <p>In this issue of the <italic>Arquivos Brasileiros de Cardiologia</italic>, Ribeiro Jr. and Fernandes<sup><xref ref-type="bibr" rid="B10">10</xref></sup> analyze the cumulative effect of different types of PA on the workers&#8217; AH. They studied 1,070 participants who worked for two companies with quite different physical requirements: 624 workers in urban cleaning and 446 in the shoe industry. The PA was evaluated in all workers in the different modalities: occupational (OPA), domestic (DPA) and leisure (LPA). The occurrence of AH was analyzed considering as the main variable the number of PA modalities that the worker performed (OPA, DPA and/or LPA), and it was concluded that there was a cumulative effect of the different types of PA in the protection against AH.</p>
      <p>This research<sup><xref ref-type="bibr" rid="B10">10</xref></sup> includes professional classes that characterize very well opposite behaviors in relation to the degree of OPA, involving a large number of manual workers employed in urban cleaning and others who are not very active in the conventional manufacturing industry. However, PA in displacement, which is more easily analyzed and frequently estimated in such studies,<sup><xref ref-type="bibr" rid="B8">8</xref></sup> was not evaluated, and DPA, present in the real world but more difficult to quantify, was included, notably in this population sample with almost 80% of male individuals. In the multivariate analysis, PA was evaluated in the three modalities (OPA, DPA and LPA), and the workers active in the three types of PA comprised the first group, those active in two modalities comprised another group and, the third consisted of workers who were inactive or active in only one type of PA. This division is liable to criticism: for instance, not impossible in the real world, an employee of the shoe factory (little OPA), little involved in DPA, but who performs 1 hour of exercise 5 times a week (300 minutes a week), would be classified as belonging to the third group (active in only one PA modality, together with the inactive ones).<sup><xref ref-type="bibr" rid="B10">10</xref></sup></p>
      <p>The contribution of OPA to AH control is defended by most researchers,<sup><xref ref-type="bibr" rid="B2">2</xref>,<xref ref-type="bibr" rid="B8">8</xref>,<xref ref-type="bibr" rid="B11">11</xref></sup> but it is not a consensus opinion.<sup><xref ref-type="bibr" rid="B9">9</xref>,<xref ref-type="bibr" rid="B12">12</xref>,<xref ref-type="bibr" rid="B13">13</xref></sup> Several epidemiological studies have shown that the risk of cardiovascular disease and death can increase with OPA.<sup><xref ref-type="bibr" rid="B12">12</xref></sup> These contrasting effects of PA on health have been called the &#8220;physical activity paradox&#8221; in health.<sup><xref ref-type="bibr" rid="B9">9</xref></sup>The increased risk in OPA has been demonstrated more frequently in workers with low income, low cardiorespiratory fitness and pre-existing diseases, such as AH and coronary disease.<sup><xref ref-type="bibr" rid="B13">13</xref></sup> Holtermann et al.<sup><xref ref-type="bibr" rid="B9">9</xref></sup> indicate that some differences between LPA and OPA may justify the difference in the observed results, including: 1) OPA with very low intensity and very long duration to improve physical fitness and cardiovascular health; 2) OPA with weightlifting or static postures, which can increase BP; 3) OPA performed without sufficient recovery time; 4) OPA performed with little control by the worker; and 5) OPA that increases inflammation levels. The wrong type of PA can be harmful to health, both in the context of OPA and LPA.<sup><xref ref-type="bibr" rid="B13">13</xref></sup> Therefore, too much mechanical force can cause a musculoskeletal injury, a too frequent activity can lead to exhaustion and too much time in the standing position can facilitate the appearance of varicose veins in the lower limbs. In contrast, too little strength can cause bone and muscle loss, infrequent exercises can cause cardiorespiratory deconditioning or cardiometabolic health alteration.<sup><xref ref-type="bibr" rid="B13">13</xref></sup>Thus, the benefits of physical activity, both at work and during leisure, are only manifested when the several aspects of PA are well adjusted, calibrated. The different dimensions of PA (intensity, duration, frequency of postures and different movements) affect different body systems and functions (aerobic capacity, muscle strength, movements, balance, coordination). All these aspects of PA at work should lead to the meeting of one&#8217;s &#8220;perfect point&#8221;, so that their effect in health promotion can occur.<sup><xref ref-type="bibr" rid="B13">13</xref></sup></p>
      <p>In conclusion, PA is beneficial to health and helps to control BP, mainly through the practice of aerobic exercises, but also with resistance exercises. The cumulative effect of different types of PA, as studied by Ribeiro Jr. &amp; Fernandes,<sup><xref ref-type="bibr" rid="B10">10</xref></sup> contributes to the protection against AH. The OPA should be evaluated carefully and in details, aiming to find optimal physical activity situations, so they can be used for health benefits, and not as a harmful mechanism for the worker.</p>
    </body>
    <back>
      <fn-group>
        <fn fn-type="other">
          <p>Short Editorial related to the article: Hypertension in Workers: The Role of Physical Activity and its Different Dimensions</p>
        </fn>
      </fn-group>
    </back>
  </sub-article>
</article>
