Ubago-Guisado E, et al. - In adolescent male athletes, researchers gauged the factors for 12-month changes of areal bone mineral density (aBMD), hip geometry, and trabecular bone score (TBS). Participants were 104 adolescent males aged 12–14 years at baseline who were followed over 12 months. The most consistent factors for 12-month changes in aBMD, hip geometry estimates, and TBS in adolescent male athletes are the changes in region-specific lean mass and the type of sport. The most consistent predictor of changes in hip geometry estimates was cycling participation followed by changes in region-specific lean mass, and changes in cardiorespiratory fitness.