Donald R. Dengel, PhD, professor in the School of Kinesiology and director of the Laboratory of Integrative Human Physiology, appears in two blogs on the Hologic, Inc., Body/Logic website. In the first blog Dr. Dengel discusses the use of dual X-ray absorptiometry (DXA) to measure and monitor body composition changes in athletes at the University of Minnesota. In the second blog Dr. Dengel discusses the possible uses of DXA on monitoring injury and recovery in athletes.