title: The Q angle and sport.
abstract: Quadriceps muscle contraction tends to straighten the Q angle. We expected that sports comprising a high amount of quadriceps training could be associated with low Q angles. The aim of the present study was to estimate the Q angle in athletes and to investigate its potential associations with participation in sport. Three hundred and thirty-nine athletes had their Q angle measured. The mean of right-side Q angles was higher than left side, and the mean Q angle was higher in women than in men. The Q angle was positively associated with years of jogging, and negatively with years of soccer, swimming and sports participation at all. It is concluded that the use of Q angle measurements is questionable.
authors.affiliation: Department of Rheumatology, Aarhus University, Denmark.
authors.forename: T
authors.initials: T
authors.lastname: Hahn
authors.forename: A
authors.initials: A
authors.lastname: Foldspang
mesh_terms: D000293:Adolescent; D000328:Adult; D000886:Anthropometry; D005260:Female; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology*; D012044:Regression Analysis; D013177:Sports / Q000502:physiology*; D013997:Time Factors