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Nine male professional soccer players (25\u00b73\u00a0\u00b1\u00a04\u00b71\u00a0years) performed five maximal concentric contractions of the knee extensors (<jats:styled-content style=\"fixed-case\">KE<\/jats:styled-content>) and flexors (<jats:styled-content style=\"fixed-case\">KF<\/jats:styled-content>) at 60\u00a0s<jats:sup>\u22121<\/jats:sup> to assess H<jats:sub>con<\/jats:sub>:Q<jats:sub>con<\/jats:sub>. The test was performed using the dominant (preferred kicking), and non\u2010dominant limb with a 5\u2010min recovery period was allowed between them. Only players with H<jats:sub>con<\/jats:sub>:Q<jats:sub>con<\/jats:sub>\u00a0&lt;\u00a00\u00b760 (range: 0\u00b745\u20130\u00b759) in both limbs were included in this study. The muscle cross\u2010sectional area (<jats:styled-content style=\"fixed-case\">CSA<\/jats:styled-content>) of <jats:styled-content style=\"fixed-case\">KE<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">KF<\/jats:styled-content> was determined by magnetic resonance imaging. The correlations between H<jats:sub>con<\/jats:sub>:Q<jats:sub>con<\/jats:sub> and H<jats:sub>csa<\/jats:sub>:Q<jats:sub>csa<\/jats:sub> in the dominant leg (<jats:italic>r\u00a0<\/jats:italic>=\u00a0\u22120\u00b733), non\u2010dominant leg (<jats:italic>r\u00a0<\/jats:italic>=\u00a00\u00b719) and in the both legs combined (<jats:italic>r\u00a0<\/jats:italic>=\u00a00\u00b728) were not statistically significant (<jats:italic>P<\/jats:italic>&gt;0\u00b705). Thus, the H<jats:sub>con<\/jats:sub>:Q<jats:sub>con<\/jats:sub> seems not to be determined by H<jats:sub>csa<\/jats:sub>:Q<jats:sub>csa<\/jats:sub> in professional soccer players with H<jats:sub>con<\/jats:sub>:Q<jats:sub>con<\/jats:sub> imbalance.<\/jats:p>","DOI":"10.1111\/cpf.12209","type":"journal-article","created":{"date-parts":[[2014,10,28]],"date-time":"2014-10-28T04:26:10Z","timestamp":1414470370000},"page":"159-164","source":"Crossref","is-referenced-by-count":17,"title":["Hamstrings\u2010to\u2010quadriceps strength and size ratios of male professional soccer players with muscle imbalance"],"prefix":"10.1111","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0775-1889","authenticated-orcid":false,"given":"Benedito S\u00e9rgio","family":"Denadai","sequence":"first","affiliation":[{"name":"Human Performance Laboratory UNESP Rio Claro SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felipe Bruno Dias","family":"de Oliveira","sequence":"additional","affiliation":[{"name":"Human Performance Laboratory UNESP Rio Claro SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S\u00e9rgio Ricardo de Abreu","family":"Camarda","sequence":"additional","affiliation":[{"name":"Human Performance Laboratory UNESP Rio Claro SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leandro","family":"Ribeiro","sequence":"additional","affiliation":[{"name":"Human Performance Laboratory UNESP Rio Claro SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Camila Coelho","family":"Greco","sequence":"additional","affiliation":[{"name":"Human Performance Laboratory UNESP Rio Claro SP 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