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Therefore, the aim of the present study was to verify the eccentric knee flexor strength of professional male football players with and without history of HSI in the prior season. This case\u2013control study assessed 210 professional male football players from 10 Brazilian clubs: 182\u00a0included in the control group and 28\u00a0in the previously injured group. Players from the injured group had suffered unilateral HSI in the prior season. We measured the knee flexors peak force during the Nordic hamstring exercise and calculated the between\u2010limb asymmetry. Groups were similar for age, body mass and height (<jats:italic>p<\/jats:italic> &gt; 0.05). Control group had similar strength values between left and right limbs (376.29 \u00b1 61.77\u00a0N vs. 380.28 \u00b1 61.77\u00a0N; <jats:italic>p<\/jats:italic> = 0.27; <jats:italic>d<\/jats:italic> = 0.06), while the previously injured limb was weaker than the contralateral uninjured limb in the injured group (350.87 \u00b1 60.79\u00a0N vs. 385.75 \u00b1 63.49\u00a0N; <jats:italic>p<\/jats:italic> &lt; 0.01; <jats:italic>d<\/jats:italic> = 0.56). Thirty\u2010seven percent of players in the control group and 50% in the injured group presented between\u2010limb asymmetry &gt;10%. This study demonstrates that players with history of HSI in the prior season present reduced eccentric knee flexor strength in the injured limb, but half of them have between\u2010limb asymmetry within the most commonly adopted benchmark value of 10%.<\/jats:p>","DOI":"10.1080\/17461391.2020.1743766","type":"journal-article","created":{"date-parts":[[2020,3,17]],"date-time":"2020-03-17T10:53:57Z","timestamp":1584442437000},"page":"131-139","update-policy":"https:\/\/doi.org\/10.1080\/tandf_crossmark_01","source":"Crossref","is-referenced-by-count":29,"title":["Eccentric knee flexor strength of professional football players with and without hamstring injury in the prior season"],"prefix":"10.1002","volume":"21","author":[{"given":"Jo\u00e3o Breno","family":"Ribeiro\u2010Alvares","sequence":"first","affiliation":[{"name":"Graduate Program in Rehabilitation Sciences Federal University of Health Sciences of Porto Alegre (UFCSPA) Porto Alegre Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriel Dos Santos","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Graduate Program in Rehabilitation Sciences Federal University of Health Sciences of Porto Alegre (UFCSPA) Porto Alegre Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felipe Xavier","family":"De Lima\u2010E\u2010Silva","sequence":"additional","affiliation":[{"name":"Graduate Program in Rehabilitation Sciences Federal University of Health Sciences of Porto Alegre (UFCSPA) Porto Alegre Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4774-7262","authenticated-orcid":false,"given":"Bruno Manfredini","family":"Baroni","sequence":"additional","affiliation":[{"name":"Graduate Program in Rehabilitation Sciences Federal University of Health Sciences of Porto Alegre (UFCSPA) Porto Alegre Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,3,26]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40279\u2010016\u20100638\u20102"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600\u20100838.2003.00312.x"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102013\u2010092165"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102017\u2010098160"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1519\/JSC.0000000000002609"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102015\u2010095850"},{"key":"e_1_2_8_8_1","unstructured":"Bourne M. 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