title: Prevalence of knee instability in relation to sports activity.
abstract: The objective was to estimate the prevalence of knee instability among active athletes and to investigate potential associations to type, amount and duration of sports participation. Based on a questionnaire, 339 athletes provided information about different features of occupation, sports activity and knee instability. The 12-month period prevalence of knee instability and constant or recurrent knee instability, and absence from sport and absence from work due to knee instability, was 22%, 14%, 5% and 1%, respectively. Knee instability as such, and constant or recurrent knee instability were found to be positively associated with female gender and different features of occupational work. In conclusion, knee instability is a commonly reported phenomenon among active athletes. It was found to be independent of the type and the amount of sports activity but highly dependent on female gender, type and amount of occupational work.
authors.affiliation: Sports Clinic, Department of Rheumatology, University of Aarhus, Denmark.
authors.forename: T
authors.initials: T
authors.lastname: Hahn
authors.forename: A
authors.initials: A
authors.lastname: Foldspang
authors.forename: T
authors.initials: T
authors.lastname: Ingemann-Hansen
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D001265:Athletic Injuries / Q000453:epidemiology*; D003718:Denmark / Q000453:epidemiology; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000453:epidemiology*; D007718:Knee Injuries / Q000453:epidemiology*; D008297:Male; D009784:Occupational Diseases / Q000453:epidemiology*; D015995:Prevalence; D012044:Regression Analysis; D012307:Risk Factors; D017678:Sex Distribution; D012737:Sex Factors; D013177:Sports / Q000706:statistics & numerical data*; D013997:Time Factors; D017132:Workplace / Q000706:statistics & numerical data