DEAR DR. ROACH: I am an active, 5-foot-2-inch, 125-pound, 72-year-old Caucasian woman without a history of known osteoporotic risk factors, other than demographic ones. I exercise daily, eat ...

The team developed a model that fed the 3D surface scans into a dual-energy X-ray absorptiometry, or DXA scanner. With the inputs, the DXA scanner measured quantities of muscle, fat and bone. The DXA ...