Kondiboyina V, et al. - This study was undertaken to determine if preadolescent overweight/obese children’s bones respond to a 9-month physical activity intervention by increasing bone density comparable to healthy-weight children. The study sample consisted of overweight/obese (BMI > 85%) and healthy weight (15% < BMI < 85%) preadolescents (8-9 years old). According to findings, the smaller change in bone mineral apparent density (BMAD) over the 9 months and lower BMAD per unit lean mass may show a slower rate of bone mass accrual in overweight/obese vs healthy weight children, which may have implications for bone health in obese/overweight children during skeletal growth.