FIGURE 1.
Bone-density measures in athletes with amenorrhea (AA), athletes with eumenorrhea (EA), and control subjects (C) (mean ± SEM). Bone-density z scores for the lumbar spine and WB BMC/height (BMC/Ht) were lower in athletes with amenorrhea than in athletes with eumenorrhea and control subjects. Hip bone density was lower in athletes with amenorrhea than in athletes with eumenorrhea. a P < .05, compared with control subjects; b P < .05, compared with athletes with eumenorrhea; c P < .1, compared with control subjects.