{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T12:28:48Z","timestamp":1790512128386,"version":"4.1.0"},"reference-count":40,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2018,3,24]],"date-time":"2018-03-24T00:00:00Z","timestamp":1521849600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001638","name":"Dublin City University","doi-asserted-by":"publisher","award":["SFI\/12\/RC\/2289"],"award-info":[{"award-number":["SFI\/12\/RC\/2289"]}],"id":[{"id":"10.13039\/501100001638","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Scandinavian Med Sci Sports"],"published-print":{"date-parts":[[2018,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Athletic groin pain (<jats:styled-content style=\"fixed-case\">AGP<\/jats:styled-content>) is a common injury prevalent in field sports. One biomechanical measure that may be of importance for injury risk is stiffness. To date however, stiffness has not been examined in <jats:styled-content style=\"fixed-case\">AGP<\/jats:styled-content>. The primary aim was to determine whether <jats:styled-content style=\"fixed-case\">AGP<\/jats:styled-content> affects vertical and joint stiffness and if so, whether successful rehabilitation is associated with a change in stiffness. Sixty\u2010five male patients with <jats:styled-content style=\"fixed-case\">AGP<\/jats:styled-content> and fifty male controls were recruited to this study. Assessment included a biomechanical examination of stiffness during a lateral hurdle hop test. Subjects with <jats:styled-content style=\"fixed-case\">AGP<\/jats:styled-content> were tested pre\u2010 and post\u2010rehabilitation, while controls were tested once. <jats:styled-content style=\"fixed-case\">AGP<\/jats:styled-content> subjects were cleared for return to play in a median time of 9.14\u00a0weeks (5.14\u201029.0). Stiffness was significantly different at pre\u2010rehabilitation in comparison with controls for four of the ten stiffness values examined: ankle plantar flexor, knee extensor, hip abductor, and vertical stiffness (<jats:italic>P\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>.05, D\u00a0=\u00a00.36\u20100.79). Despite clearance for return to play, of these four variables, only hip abductor stiffness changed significantly from pre\u2010 to post\u2010rehabilitation (<jats:italic>P\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>.05, D\u00a0=\u00a00.35) to become non\u2010significantly different to the uninjured group (<jats:italic>P\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>.18, D\u00a0=\u00a00.26). These findings suggest that hip abductor stiffness may represent a target for <jats:styled-content style=\"fixed-case\">AGP<\/jats:styled-content> rehabilitation. Conversely, given the clearance for return to play, the lower sagittal plane and vertical stiffness in the <jats:styled-content style=\"fixed-case\">AGP<\/jats:styled-content> group in comparison with the uninjured controls likely represents either a compensatory mechanism to reduce the risk of further injury or a consequence of neuromuscular detraining.<\/jats:p>","DOI":"10.1111\/sms.13069","type":"journal-article","created":{"date-parts":[[2018,2,9]],"date-time":"2018-02-09T06:56:15Z","timestamp":1518159375000},"page":"1681-1690","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Is stiffness related to athletic groin pain?"],"prefix":"10.1111","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3077-2787","authenticated-orcid":false,"given":"S. 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