There is limited Irish research which focuses on rates of physical activity and the correlates of physical activity among college students, typically aged 18–22 (Clán Survey, 2003). A questionnaire examining participation rates in and correlates of physical activity was administered to a representative sample of 532 students in colleges within the Republic of Ireland. Key correlates of physical activity were further explored using interviews ( n = 16) of Irish coaches/college sport personnel and college students. A significantly higher percentage of males reported participation in organized physical activity/sport (male = 57.8%, female = 27.5%; p ≤ .001), whereas females were more likely to participate in unorganized physical activity (female = 74%, male = 56.8%; p ≤ .001). Intrinsic motivational factors (e.g., fun/ enjoyment, fitness, fondness of competition, interest) were found to be primary positive correlates of physical activity/sport for both males and females. Barriers to physical activity were elements associated with college life (e.g., lack of time, coursework) as well as lack of interest. Significant multivariate effects were obtained for gender and the correlates leading to participation in organized and unorganized physical activity/sport. Univariate analysis revealed that psychological and social correlates were significantly related to engagement in organized physical activity/sport among gender and more pronounced among males. However, only psychological correlates were significantly associated to participation in unorganized physical activity among gender and more prevalent among females. Cognizance of intrinsic influences should be taken when developing physical activity promotional strategies with Irish college students. Among Irish females, emphasis should be placed on the development of unorganized noncompetitive physical activity.
