Prior Physical Activity Influences Changes In Tibial Bone Microarchitecture During U.S. Army Basic Combat Training: 361. (August 2021) - Popp, Kristin L.; Taylor, Kathryn M.; Guerriere, Katelyn I.; Smith, Nathaniel I.; Staab, Jeffery S.; Walker, Leila A.; Staab, Janet E.; Proctor, Susan P.; Foulis, Stephen A.; Bouxsein, Mary L.; Hughes, Julie M.