RecruitingClinical trialEffects of Exercise on Lipids and Endothelial Function in YouthThis study is for individuals who have a BMI that is at or above the 95th percentile and are participating in the Cincinnati Children's Hospital Healthworks! Structured weight loss program. The main reason for this research study is to determine how exercise affects an individual's high level of lipids (fats) in their blood and how well their blood vessels function.