Technical Abstract: Elite adolescent figure skaters must accommodate both the physical demands of competitive training and the accelerated rate of bone growth that is associated with adolescence. Although, these athletes apparently undergo sufficient physical activity to develop healthy bones, it is possible that other factors such as low fat mass can compromise the growth and strength of bones. We studied differences in total and regional bone density among 36 nationally ranked skaters among 3 skater disciplines: single, pairs, and dancers. Bone mineral density (BMD) was measured using a modern X-ray method called dual energy x-ray absorptiometry. The skaters had a mean body % fat of 19.2+/- 5.8. After controlling for their diet, calcium and vitamin D intake, we found a significant relationship between skater discipline and BMD, with single skaters having greater BMD in the total body, legs and pelvis. Pair skaters had greater pelvic BMD than ice dancers. Single and pair skaters have greater BMD than ice dancers. The bone building effect of physical training is most apparent in single skaters, particularly in the bone loading sites if the leg and pelvis