 This study found that organized physical activities such as sports or dance classes were most strongly associated with positive health outcomes in children aged 10 to 11 years old. Additionally, this study showed that the amount of time spent in these organized activities was positively correlated with improved physical, psychological, and total health-related quality of life. This article was authored by Byron Jay Kemp, Dorothea DuMuid, Kahao Chong and others.