{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,9]],"date-time":"2026-02-09T22:23:35Z","timestamp":1770675815058,"version":"3.49.0"},"reference-count":61,"publisher":"Human Kinetics","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,8,1]]},"abstract":"<jats:p>Following anterior cruciate ligament reconstruction (ACLR), patients exhibit abnormal walking mechanics and quadriceps dysfunction. Quadriceps dysfunction has been largely attributed to muscle atrophy and weakness. While important, these factors do not capture intrinsic properties of muscle that govern its ability to generate force and withstand load. While fascicle abnormalities after ACLR have been documented in early stages of recovery (&lt;12\u00a0mo), long-term effects of ACLR on fascicle mechanics remain unexplored. We evaluated quadriceps fascicle mechanics during walking 3\u00a0years post-ACLR and examined the relationship with knee mechanics. Participants included 24 individuals with ACLR and 24 Controls. Linear mixed models compared the ACLR, Contralateral, and Controls limbs for (1)\u00a0quadriceps strength, (2)\u00a0fascicle architecture and mechanics, and (3)\u00a0knee mechanics. No difference in strength or overall fascicle length excursions was found between limbs. The ACLR limb exhibited longer fascicles at heel strike and peak knee extension moment (<jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001\u2013.004), and smaller fascicle angles at heel strike, peak knee extension moment, and overall suppressed fascicle angle excursions (<jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001\u2013.049) relative to the Contralateral and\/or Control limb. This indicates an abnormality in fascicle architecture and mechanics following ACLR and suggests abnormalities in contractile function that cannot be explained by muscle weakness and may contribute to long-term gait irregularities.<\/jats:p>","DOI":"10.1123\/jab.2023-0252","type":"journal-article","created":{"date-parts":[[2024,7,16]],"date-time":"2024-07-16T09:57:41Z","timestamp":1721123861000},"page":"346-355","source":"Crossref","is-referenced-by-count":2,"title":["Chronic Adaptions in Quadriceps Fascicle Mechanics Are Related to Altered Knee Biomechanics After Anterior Cruciate Ligament Reconstruction"],"prefix":"10.1123","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6864-138X","authenticated-orcid":true,"given":"McKenzie S.","family":"White","sequence":"first","affiliation":[{"name":"School of Kinesiology, University of Michigan, Ann Arbor, MI, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lucia M.","family":"Mancini","sequence":"additional","affiliation":[{"name":"School of Kinesiology, University of Michigan, Ann Arbor, MI, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-6662-1085","authenticated-orcid":true,"given":"Luke","family":"Stoneback","sequence":"additional","affiliation":[{"name":"School of Kinesiology, University of Michigan, Ann Arbor, MI, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6790-3691","authenticated-orcid":true,"given":"Riann M.","family":"Palmieri-Smith","sequence":"additional","affiliation":[{"name":"School of Kinesiology, University of Michigan, Ann Arbor, MI, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7266-0831","authenticated-orcid":true,"given":"Lindsey K.","family":"Lepley","sequence":"additional","affiliation":[{"name":"School of Kinesiology, University of Michigan, Ann Arbor, MI, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"100","reference":[{"issue":"2","key":"r1","series-title":"Arthroscopy","doi-asserted-by":"publisher","first-page":"511","DOI":"10.1016\/j.arthro.2018.07.033","article-title":"Abnormal biomechanics at 6 months are associated with cartilage degeneration at 3\u00a0years after anterior cruciate ligament reconstruction","volume":"35","author":"Shimizu T","year":"2019","unstructured":"Shimizu T, Samaan MA, Tanaka MS, et\u00a0al. 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