Bone Mineral Density

ANSWER: In young women, there is a definite correlation between abnormal menstrual function and low bone mineral density. This is observed in young females with irregular periods and especially those with an absence of their monthly periods. Other factors can contribute to the development of loss of periods in young females. The young females, who begin running on or before the onset of their periods, may have a higher rate of failure to develop normal periods. Factors that can contribute also include low body fat, poor nutritional status, and increasing weekly mileage in running. It has been shown that one-third of highly competitive female athletes may have some form of an eating disorder, and there is a definite correlation between low calorie intake and the absence of periods in young females. The correlation between poor nutritional intake, absence of periods in young females, and low bone mineral density have been well established. The young female, who is going to be involved in long-distance running, should be aware of this correlation and should seek medical help, if she develops irregularity or absence of her monthly menstrual periods.

WRITTEN BY: Robert A. Pruner, M. D.

This month's Article - Weightlifting by Dr. Scott E. Urch