{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T07:49:51Z","timestamp":1791445791695,"version":"4.3.3"},"reference-count":21,"publisher":"SAGE Publications","issue":"12","license":[{"start":{"date-parts":[[2019,9,17]],"date-time":"2019-09-17T00:00:00Z","timestamp":1568678400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/100001279","name":"orthopaedic research and education foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100001279","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Am J Sports Med"],"published-print":{"date-parts":[[2019,10]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Lower extremity injuries are common in high school sports and are costly, and some have poor outcomes. The FIFA 11+ injury prevention program has been shown to decrease injuries in elite athletes by up to 72%.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Hypothesis:<\/jats:title>\n                    <jats:p>High schools in which coaches implement the FIFA 11+ injury prevention program in their athletic programs will have a decreased incidence of lower extremity injuries compared with schools using their usual prepractice warm-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Randomized controlled trial; Level of evidence, 1.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Fourteen high schools that employed an athletic trainer were randomly assigned to either the FIFA 11+ group or control group (usual warm-up routine). Exposure to sports and injuries were recorded and used to determine the incidence rates of lower extremity injuries per athlete-exposure (AE). The FIFA 11+ program was implemented by coaches and complicance with the program recorded.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>There were 196 lower extremity injuries among 1825 athletes in the FIFA 11+ group and 172 injuries among 1786 athletes in the control group (1.59 and 1.47 injuries per 1000 AEs, respectively; P = .771). The distribution of the types of injury in the 2 groups did not differ, but the body locations where the injuries occurred differed somewhat ( P = .051). The FIFA 11+ group had larger proportions of thigh and foot injuries, while the control group had higher proportions of knee and ankle injuries. Group differences in injury rates varied with sport ( P = .041 for interaction), but there were no significant differences in injury rates between the FIFA 11+ and control groups by sport, level of play, and sex. In the FIFA 11+ group, 62% of the coaches reported that their teams completed the full FIFA 11+ program at least once a week, and 32% reported that they completed it at least twice a week.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>This study did not demonstrate a reduction in lower extremity injuries in schools randomized to use the FIFA 11+ program compared with schools using their usual prepractice warm-up program. Coach-reported compliance with performing the FIFA 11+ program at least twice a week was low.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0363546519873270","type":"journal-article","created":{"date-parts":[[2019,9,17]],"date-time":"2019-09-17T13:08:01Z","timestamp":1568725681000},"page":"2844-2852","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":58,"title":["Implementation of the FIFA 11+ Injury Prevention Program by High School Athletic Teams Did Not Reduce Lower Extremity Injuries: A Cluster Randomized Controlled Trial"],"prefix":"10.1177","volume":"47","author":[{"given":"James R.","family":"Slauterbeck","sequence":"first","affiliation":[{"name":"Department of Orthopaedics and Rehabilitation, Robert Larner, MD, College of Medicine, University of Vermont, Burlington, Vermont, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rebecca","family":"Choquette","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Rehabilitation, Robert Larner, MD, College of Medicine, University of Vermont, Burlington, Vermont, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy W.","family":"Tourville","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Rehabilitation, Robert Larner, MD, College of Medicine, University of Vermont, Burlington, Vermont, USA"},{"name":"Department of Rehabilitation and Movement Science, College of Nursing and Health Sciences, University of Vermont, Burlington, Vermont, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mickey","family":"Krug","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Rehabilitation, Robert Larner, MD, College of Medicine, University of Vermont, Burlington, Vermont, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bert R.","family":"Mandelbaum","sequence":"additional","affiliation":[{"name":"Cedars-Sinai Kerlan-Jobe Institute, Santa Monica, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pamela","family":"Vacek","sequence":"additional","affiliation":[{"name":"Department of Medical Biostatistics, Robert Larner, MD, College of Medicine, University of Vermont, Burlington, Vermont, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bruce D.","family":"Beynnon","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Rehabilitation, Robert Larner, MD, College of Medicine, University of Vermont, Burlington, Vermont, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2019,9,17]]},"reference":[{"key":"bibr1-0363546519873270","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph111111986"},{"key":"bibr2-0363546519873270","doi-asserted-by":"publisher","DOI":"10.1177\/0363546514540862"},{"key":"bibr3-0363546519873270","doi-asserted-by":"publisher","DOI":"10.1197\/j.aem.2007.03.1354"},{"key":"bibr4-0363546519873270","unstructured":"F-MARC. FIFA 11+: a complete warm-up programme. 2013. Available at: http:\/\/f-marc.com. 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