Studies Conducted in Amenorrheic Distance Runners Suggest That ____

Multiple Choice

Studies conducted in amenorrheic distance runners suggest that ____.

A) long-duration, weight-bearing exercise compensates for the loss of bone mineral density associated with amenorrhea
B) bone mineral density declines in the first six months and then stabilizes due to long-duration, weight-bearing exercise
C) osteopenia and osteoporosis do occur despite long-duration, weight-bearing exercise
D) loss of bone mineral density is primarily a result of very low calcium intake, not exercise