Physical activity, sedentary time, and longitudinal bone strength in adolescent girls

The association between baseline physical activity and sedentary time with 2-year longitudinal bone strength was evaluated. The effect of physical activity on bone depended on maturity status. Sedentary time did not negatively impact bone outcomes, regardless of maturity. Maturity should be considered when developing exercise interventions to improve bone outcomes. Physical activity during adolescence is important to obtain peak bone mass;...