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Likewise, little is known about the sex\u2010specific injury risks and patterns of elite skiers throughout an entire season (i.e. an off\u2010season preparation period and a competition period). Accordingly, this study investigated the injuries of a national team cohort with respect to season period and sex.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Over an entire season, all injuries occurring in 44 Swiss National Ski Team members (25 females and 19\u00a0males) were registered, regardless of whether they required medical attention. Skiers were prospectively monitored by the Oslo Sports Trauma Research Centre (OSTRC) questionnaire and by continuously updated team medical records. Finally, these data were used as a reference for supplemental interviews, in which the correctness and completeness of the prospective data were verified.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The risk of suffering at least one injury during an entire season was 75.0% with a 95% confidence interval (73.1%, 76.9%) for traumatic injuries, and 52.3% (50.0%, 54.5%) for overuse injuries. Traumatic injuries concerned the head, lower leg and knee, while overuse injuries affected the lumbar spine, knee and hip. During the competition period, skiers were more prone to traumatic injuries, while during the off\u2010season preparation period, skiers\u2019 risk was higher for overuse injuries. Over an entire season, there were no sex differences. However, females were more vulnerable to traumatic injuries during the preparation period and overuse injuries during the competition period, while males had a higher risk for overuse injuries during the preparation period.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>When prospectively registering injuries among elite competitive alpine skiers over an entire season, regardless of whether the injuries required medical attention, the injury risks were alarmingly high and substantially larger than those previously reported. Moreover, since injury risks and patterns are season period and sex dependent, it is strongly recommended that (1) injury registration focuses on both the off\u2010season preparation period and the competition period and (2) prevention efforts are specifically tailored to the sex of the athletes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>II.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-020-06110-5","type":"journal-article","created":{"date-parts":[[2020,6,17]],"date-time":"2020-06-17T09:03:46Z","timestamp":1592384626000},"page":"1635-1643","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["Injury risks among elite competitive alpine skiers are underestimated if not registered prospectively, over the entire season and regardless of whether requiring medical attention"],"prefix":"10.1002","volume":"29","author":[{"given":"Stefan","family":"Fr\u00f6hlich","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Sports Medical Research Group, Department of Orthopaedics Balgrist University Hospital, University of Zurich Lengghalde 5 8008 Zurich Switzerland"},{"name":"<!--<label>2<\/label>--> University Centre for Prevention and Sports Medicine, Department of Orthopaedics Balgrist University Hospital, University of Zurich Zurich Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Moritz","family":"Helbling","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Sports Medical Research Group, Department of Orthopaedics Balgrist University Hospital, University of Zurich Lengghalde 5 8008 Zurich Switzerland"},{"name":"<!--<label>2<\/label>--> University Centre for Prevention and Sports Medicine, Department of Orthopaedics Balgrist University Hospital, University of Zurich Zurich Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sandro F.","family":"Fucentese","sequence":"additional","affiliation":[{"name":"<!--<label>3<\/label>--> Knee Surgery, Department of Orthopaedics Balgrist University Hospital, University of Zurich Zurich Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Walter","family":"Karlen","sequence":"additional","affiliation":[{"name":"<!--<label>4<\/label>--> Mobile Health Systems Lab, Institute for Robotics and Intelligent Systems, Department of Health Sciences and Technology ETH Zurich Zurich Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Walter O.","family":"Frey","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> University Centre for Prevention and Sports Medicine, Department of Orthopaedics Balgrist University Hospital, University of Zurich Zurich 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