Figure 1From: The influence of lifestyle, menstrual function and oral contraceptive use on bone mass and size in female military cadetsThe impact of menstrual function on bone mass and size. Menstrual function was defined as normal (≥ 10 cycles/year) versus oligomenorrhea/amenorrhea (≤ 9 cycles/year). Bone mineral density was measured at the spine, hip and heel; and at the tibia, bone mineral content, cortical thickness and endosteal circumference were determined. All values are mean ± standard errors.Back to article page