The relationship between physical fitness and clustered risk and tracking of clustered risk from adolescence to young adulthood: eight years follow-up in the Danish Youth and Sport Study

摘要

IntroductionCardiovascular disease (CVD) is usually caused by high levels of many risk factors simultaneously over many years. Therefore, it is of great interest to study if subjects stay within rank order over time in both the biological risk factors and the behaviour that influences these risk factors. Many studies have described stability (tracking) in single risk factors, especially in children where hard endpoints are lacking, but few have analysed tracking in clustered risk.