{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T19:02:37Z","timestamp":1780686157383,"version":"3.54.1"},"reference-count":48,"publisher":"BMJ","issue":"22","funder":[{"name":"F\u00e9d\u00e9ration Internationale de Football Association"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Br J Sports Med"],"accepted":{"date-parts":[[2018,8,17]]},"published-print":{"date-parts":[[2019,11]]},"abstract":"<jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>To assess the effects of the injury prevention programme \u201811+ Kids\u2019 on reducing severe injuries in 7 to 13\u2009year old football (soccer) players.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Football clubs (under-9, under-11 and under-13 age groups) from the Czech Republic, Germany, the Netherlands and Switzerland were cluster-randomised (clubs) into an intervention (INT) and a control group (CON). INT replaced their usual warm-up by \u201811+ Kids\u2019 two times a week. CON followed their regular training regime. Match and training exposure and injury characteristics were recorded and injury incidence rates (IRs) and 95% CIs calculated. For the present analysis, only severe injuries (absence from training\/match \u226528 days) were considered. Hazard ratios (HR) were calculated using extended Cox models.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>The overall IR of severe injuries per 1000 football hours was 0.33 (95% CI 0.25 to 0.43) in CON and 0.15 (95% CI 0.10 to 0.23) in INT. There was a reduction of severe overall (HR 0.42, 95%\u2009CI 0.24 to 0.72), match (0.41, 0.17 to 0.95) and training injuries (0.42, 0.21 to 0.86) in INT. The injury types that were prevented the most were: other bone injuries 66%, fractures 49% and sprains and ligament injuries 37%. Severe injuries located at the knee (82%), hip\/groin (81%), the foot\/toe (80%) and the ankle (65%) were reduced tremendously.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>\u201811+ Kids\u2019 has a large preventive effect on severe injuries by investing only 15 to 20\u2009min per training session. The present results should motivate coaches to implement effective injury prevention programmes such as the \u201811+ Kids\u2019 in children\u2019s football.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Trial registration number<\/jats:title>\n                  <jats:p>\n                     <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"NCT02222025\" ext-link-type=\"clintrialgov\">NCT02222025<\/jats:ext-link>.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1136\/bjsports-2018-099062","type":"journal-article","created":{"date-parts":[[2018,10,2]],"date-time":"2018-10-02T12:15:25Z","timestamp":1538482525000},"page":"1418-1423","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":37,"title":["Effects of the \u201811+ Kids\u2019 injury prevention programme on severe injuries in children\u2019s football: a secondary analysis of data from a multicentre cluster-randomised controlled trial"],"prefix":"10.1136","volume":"53","clinical-trial-number":[{"clinical-trial-number":"nct02222025","registry":"10.18810\/clinical-trials-gov"},{"clinical-trial-number":"nct02222025","registry":"10.18810\/clinical-trials-gov"}],"author":[{"given":"Florian","family":"Beaudouin","sequence":"first","affiliation":[{"name":"Institute of Sports and Preventive Medicine, Saarland University, Saarbr\u00fccken, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6763-0694","authenticated-orcid":false,"given":"Roland","family":"R\u00f6ssler","sequence":"additional","affiliation":[{"name":"Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland"},{"name":"Amsterdam Collaboration for Health and Safety in Sports, Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Public and Occupational Health, Amsterdam Movement Sciences Institute, Amsterdam, The 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