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dc.contributor.authorSveen, Simen Andreas
dc.contributor.authorMartin, RK
dc.contributor.authorAlhaug, Eivind
dc.contributor.authorEngebretsen, Lars
dc.date.accessioned2020-04-28T08:49:21Z
dc.date.available2020-04-28T08:49:21Z
dc.date.created2019-08-26T10:51:16Z
dc.date.issued2019
dc.identifier.citationBMJ Open sport & exercise medicine. 2019, 5(1), e000530.en_US
dc.identifier.issn2055-7647
dc.identifier.urihttps://hdl.handle.net/11250/2652728
dc.descriptionThis is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.en_US
dc.description.abstractOBJECTIVES: Cross-country (CC) skiing consists of two main techniques: classic and skating. Hip motion during the skating technique is similar to that in ice skating and is considered a risk factor for femoroacetabular impingement (FAI) in ice hockey players. We aimed to compare the presence of CAM-type FAI in a cohort of elite junior CC (EJCC) skiers with a control group of non-athlete (NA) high school students. METHODS: Observational cohort study: EJCC skiers and NAs were recruited from a sports school and a regular high school, respectively. Baseline demographics and training history were obtained via a questionnaire. Bilateral hip MRI was performed and the alpha angle was measured in three planes. CAM deformity was defined as an alpha angle>55° on at least two MRI planes per hip. RESULTS: A total of 20 EJCC skiers and 10 NAs participated. All participants were male, aged 16-19 years. Average training volume was 528.10±68.34 hours per year for the EJCC skiers compared with 153.50±57.09 for the NAs (p<0.001). The prevalence of CAM deformity in at least one hip on MRI was 50% in both groups (10 CC skiers and 5 NAs). The average alpha angles were 52.4±6.1° in the EJCC group and 52.5±4.9° in the NA group (p=0.94). CONCLUSION: Radiographic evidence of CAM-type FAI was not more common in the CC skiers compared with NAs. The type, rather than volume or intensity of training, maybe a more important risk factor for the development of CAM-type FAI in young athletes.en_US
dc.language.isoengen_US
dc.relation.urihttps://bmjopensem.bmj.com/content/bmjosem/5/1/e000530.full.pdf
dc.subjectCAMen_US
dc.subjectFAIen_US
dc.subjectathleteen_US
dc.subjectcross-countryen_US
dc.subjectfemoroacetabular impingementen_US
dc.titleCAM-type femoroacetabular impingement in male elite junior cross-country skiers and non-athlete controls: A cross-sectional MRI studyen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© Author(s) (or their employer(s)) 2019.en_US
dc.source.pagenumber6en_US
dc.source.volume5en_US
dc.source.journalBMJ Open sport & exercise medicineen_US
dc.source.issue1en_US
dc.identifier.doi10.1136/bmjsem-2019-000530
dc.identifier.cristin1718632
dc.description.localcodeSeksjon for idrettsmedisinske fag / Department of Sports Medicineen_US
cristin.unitcode150,34,0,0
cristin.unitnameSeksjon for idrettsmedisinske fag
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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