{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T04:01:00Z","timestamp":1790136060227,"version":"4.0.1"},"reference-count":35,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T00:00:00Z","timestamp":1788307200000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100000646","name":"Japan Society for the Promotion of Science London","doi-asserted-by":"publisher","award":["24K12344"],"award-info":[{"award-number":["24K12344"]}],"id":[{"id":"10.13039\/501100000646","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":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Meniscal recovery time following marathon running remains unknown, despite the need for practical recommendations on post\u2010race return to training. We aimed (1) to characterize the time course of medial meniscus extrusion (MME) after a full marathon and (2) to identify baseline factors associated with the magnitude of the acute increase in MME. One hundred recreational runners (200 knees; mean age 47.2\u2009years; 77 men, 23 women) from five marathons underwent weight\u2010bearing, fully extended\u2010knee portable ultrasonography at baseline and immediately post\u2010race, and 90 runners (180 knees) were reassessed on post\u2010race Days 1\u20135. Meniscus extrusion was measured as the distance from the medial tibial plateau to the outer meniscal edge. Baseline medial\u2010to\u2010lateral load distribution was quantified as walking knee adduction moment (KAM) impulse from a tibia\u2010mounted inertial measurement unit, normalized to body mass and height. Linear mixed\u2010effects models evaluated associations between acute extrusion change and candidate predictors. Mean baseline MME was 1.14\u2009mm (95% CI 1.06\u20131.22) and increased to 1.57\u2009mm (1.49\u20131.66) immediately post\u2010race, a 38% increase (mean \u0394MME 0.44\u2009mm, 0.41\u20130.47;\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.001). MME remained significantly elevated through Day 3 (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.01) but returned to baseline from Day 4 onward (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&gt;\u20090.05). In multivariable analysis, a greater acute increase was independently associated with higher normalized KAM impulse (\n                    <jats:italic>\u03b2<\/jats:italic>\n                    \u2009=\u20090.24, 95% CI 0.10\u20130.37), higher BMI (\n                    <jats:italic>\u03b2<\/jats:italic>\n                    \u2009=\u20090.22, 0.09\u20130.36), and higher monthly running distance (\n                    <jats:italic>\u03b2<\/jats:italic>\n                    \u2009=\u20090.18, 0.04\u20130.31), with a borderline association for age (\n                    <jats:italic>\u03b2<\/jats:italic>\n                    \u2009=\u20090.15, \u22120.00 to 0.31). MME increased transiently after a marathon and returned to pre\u2010race levels by approximately Day 4; whether this transient change has clinical consequences, or warrants a specific recovery interval, requires further study.\n                  <\/jats:p>","DOI":"10.1111\/sms.70366","type":"journal-article","created":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T10:27:15Z","timestamp":1788344835000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Marathon Running Transiently Causes Medial Meniscus Extrusion: Recovery Time Course and Factors Associated With Extrusion"],"prefix":"10.1111","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-2179-2625","authenticated-orcid":false,"given":"Shinya","family":"Dobashi","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine Hokkaido University  Sapporo 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University  Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4308-174X","authenticated-orcid":false,"given":"Tomohiro","family":"Onodera","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine Hokkaido University  Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2139-5059","authenticated-orcid":false,"given":"Eiji","family":"Kondo","sequence":"additional","affiliation":[{"name":"Center for Sports Medicine Hokkaido University Hospital  Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5496-4046","authenticated-orcid":false,"given":"Norimasa","family":"Iwasaki","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine Hokkaido University  Sapporo 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