{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T07:48:14Z","timestamp":1777880894699,"version":"3.51.4"},"reference-count":10,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2018,9,1]],"date-time":"2018-09-01T00:00:00Z","timestamp":1535760000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Orthop Surg (Hong Kong)"],"published-print":{"date-parts":[[2018,9,1]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To explore factors influencing muscle strength after anterior cruciate ligament (ACL) reconstruction (ACLR) in pediatric patients. We hypothesized that obesity\/overweight, autograft hamstring tendon, and concomitant injuries would be associated with slower muscle recovery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>\n                      We retrospectively reviewed the records of pediatric ACLR patients during a 3-year period. Muscle recovery was defined as \u226585% of peak torque compared with the contralateral side. We categorized patients as either obese\/overweight or normal weight. Statistical analysis was performed using Mann\u2013Whitney U, analysis of variance, and \u03c7\n                      <jats:sup>2<\/jats:sup>\n                      tests ( \u03b1 level &lt; 0.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>The study group consisted of 330 patients, of whom 198 (60%) and 231 (70%) met quadriceps and hamstring recovery criteria, respectively, at final testing (mean: 7.0 \u00b1 3.2 months). Patients recovered hamstring and quadriceps strength at a mean of 5.3 \u00b1 2.2 months and 6.1 \u00b1 2.3 months, respectively. Hamstring muscle recovery took significantly longer in obese\/overweight patients (mean: 5.7 \u00b1 2.2 months) versus normal-weight patients (mean: 5.1 \u00b1 2.1 months; p = 0.025), but quadriceps recovery did not (obese\/overweight mean: 6.5 \u00b1 2.6 months; normal-weight mean: 5.9 \u00b1 2.1 months; p = 0.173).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Concomitant injuries and graft type were not associated with length of time to recovery of muscle strength. Obesity\/overweight was associated with delay in recovery of hamstring but not quadriceps strength.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/2309499018806631","type":"journal-article","created":{"date-parts":[[2018,10,23]],"date-time":"2018-10-23T22:39:17Z","timestamp":1540334357000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":7,"title":["Obesity and recovery of muscle strength after anterior cruciate ligament reconstruction in pediatric patients"],"prefix":"10.1177","volume":"26","author":[{"given":"R Jay","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adam","family":"Margalit","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Afam","family":"Nduaguba","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, The Children\u2019s Hospital of Philadelphia, Philadelphia, PA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Melissa A","family":"Gunderson","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, The Children\u2019s Hospital of Philadelphia, Philadelphia, PA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lawrence","family":"Wells","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, The Children\u2019s Hospital of Philadelphia, Philadelphia, PA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2018,10,23]]},"reference":[{"key":"bibr1-2309499018806631","unstructured":"National Council of Youth Sports. Report on trends and participation in organized youth sports. Market research report. NCYS membership survey\u20142008 edition, http:\/\/www.ncys.org\/pdfs\/2008\/2008-ncys-market-research-report.pdf (accessed 29 January 2016)."},{"key":"bibr2-2309499018806631","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199312000-00009"},{"key":"bibr3-2309499018806631","doi-asserted-by":"publisher","DOI":"10.1177\/0363546504271973"},{"key":"bibr4-2309499018806631","doi-asserted-by":"publisher","DOI":"10.1177\/036354659302100219"},{"key":"bibr5-2309499018806631","doi-asserted-by":"publisher","DOI":"10.1097\/BPO.0b013e3181aa2197"},{"key":"bibr6-2309499018806631","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2005-1832"},{"key":"bibr7-2309499018806631","doi-asserted-by":"publisher","DOI":"10.1136\/ip.2008.019208"},{"key":"bibr8-2309499018806631","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-012-2626-7"},{"key":"bibr9-2309499018806631","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2014.12.005"},{"key":"bibr10-2309499018806631","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-014-1992-x"}],"container-title":["Journal of Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2309499018806631","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/2309499018806631","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2309499018806631","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:25:45Z","timestamp":1777595145000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/2309499018806631"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,9,1]]},"references-count":10,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2018,9,1]]}},"alternative-id":["10.1177\/2309499018806631"],"URL":"https:\/\/doi.org\/10.1177\/2309499018806631","relation":{},"ISSN":["1022-5536","2309-4990"],"issn-type":[{"value":"1022-5536","type":"print"},{"value":"2309-4990","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,9,1]]},"article-number":"2309499018806631"}}