{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T05:34:51Z","timestamp":1792388091647,"version":"4.4.0"},"reference-count":37,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2024,2,23]],"date-time":"2024-02-23T00:00:00Z","timestamp":1708646400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2024,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>Hamstring muscle strain injury is very common in sports involving high\u2010speed running. Hamstring muscles originate from the ischial tuberosity and thus pelvic position may influence hamstring strain during different sports movements like sprinting, but this has only been evaluated by indirect methods. This study tested the hypothesis that a change in anterior pelvic tilt causes elongation of the overall hamstring complex and disproportionately elongates proximal relative to distal muscle regions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Seven fresh\u2010frozen specimens (full lower limb with pelvis and lumbar spine) were used for this in vitro study. Specimens were dissected to enable visualization of the hamstring muscles and then fixed into a custom\u2010made testing bench that allowed controlled movement of the pelvis over a fixed femur and tibia. Nine markers were inserted into the hamstring muscles to allow intra\u2010 and intermuscle difference measurements. Then, six different anterior pelvic angles were used to measure the difference in hamstring muscle lengthening through a three\u2010dimensional reconstruction system based on stereoscopic machine vision technology.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>An increase in anterior pelvic tilt produced a significant non\u2010uniform increase in tissue elongation in all regions of the three hamstring muscles (semitendinosus, semimembranosus [SMB] and biceps femoris long head), which was greater in the proximal (&gt;1\u2009cm every 5\u00b0) compared to the distal region (\u22480.4\u2009cm every 5\u00b0). At the proximal hamstring region, SMB showed significantly greater length changes compared to conjoint tendons with nonstatistically significant elongation differences between muscles at the distal region.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Considering the results of the study, the pelvis segment will likely play a fundamental role as a strain regulator of hamstring muscles. These results will have an impact on injury rehabilitation and prevention processes of hamstring injuries, as well as optimize future musculoskeletal models and avoid potential underestimation of the hamstring muscle\u2010tendon complex lengthening during high\u2010speed running.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>N\/A.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ksa.12045","type":"journal-article","created":{"date-parts":[[2024,2,23]],"date-time":"2024-02-23T06:54:27Z","timestamp":1708671267000},"page":"573-582","source":"Crossref","is-referenced-by-count":41,"title":["Anterior pelvic tilt increases hamstring strain and is a key factor to target for injury prevention and rehabilitation"],"prefix":"10.1002","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5833-2890","authenticated-orcid":false,"given":"Jurdan","family":"Mendiguchia","sequence":"first","affiliation":[{"name":"Department of Physical Therapy ZENTRUM Rehab and Performance Center Bara\u00f1ain Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6446-4993","authenticated-orcid":false,"given":"Mirian Aranzazu","family":"Garrues","sequence":"additional","affiliation":[{"name":"Physiology Department, Faculty of Medicine and Nursing University of the Basque Country Biscay Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3318-944X","authenticated-orcid":false,"given":"Ernest","family":"Schilders","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Fortius Clinic\u2014FIFA Medical Centre of Excellence London UK"},{"name":"Carnegie School of Sport Leeds Beckett University Leeds UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9983-8422","authenticated-orcid":false,"given":"Gregory D.","family":"Myer","sequence":"additional","affiliation":[{"name":"Emory Sports 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