Denadai, Benedito Sérgio [UNESP]Oliveira, Felipe Bruno Dias deCamarda, Sérgio Ricardo de AbreuRibeiro, LeandroGreco, Camila Coelho2015-12-072015-12-072014Clinical Physiology and Functional Imaging, 2014.1475-097Xhttp://hdl.handle.net/11449/131000The aim of this study was to determine the correlation between the concentric hamstrings/quadriceps muscle strength (Hcon :Qcon ) and cross-sectional area ratios (Hcsa :Qcsa ) in professional soccer players with Hcon :Qcon imbalance. Nine male professional soccer players (25·3 ± 4·1 years) performed five maximal concentric contractions of the knee extensors (KE) and flexors (KF) at 60 s(-1) to assess Hcon :Qcon . The test was performed using the dominant (preferred kicking), and non-dominant limb with a 5-min recovery period was allowed between them. Only players with Hcon :Qcon  < 0·60 (range: 0·45-0·59) in both limbs were included in this study. The muscle cross-sectional area (CSA) of KE and KF was determined by magnetic resonance imaging. The correlations between Hcon :Qcon and Hcsa :Qcsa in the dominant leg (r = -0·33), non-dominant leg (r = 0·19) and in the both legs combined (r = 0·28) were not statistically significant (P>0·05). Thus, the Hcon :Qcon seems not to be determined by Hcsa :Qcsa in professional soccer players with Hcon :Qcon imbalance.1-6engAsymmetryCross-sectional areaInjuryIsokineticMagnetic resonance imagingTorqueArtigo10.1111/cpf.12209Acesso restrito1907479250833033741612989468068925348722