The technicians at Live Lean Rx use dual-energy X-ray absorptiometry (DXA) to take a highly detailed inventory of their clients' lean muscle, body fat, and bone mass. More accurate than submerging the body in a tank of water to measure displacement, DXA technology offers specific data on regions such as the legs, arms, and trunk. With 98% accuracy they perform body fat testing, lean mass analysis, and bone density screening. The info helps clients figure out where they store fat and build muscle, and helps improve their metabolic rate.