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Article
June 25, 1982

Delayed Age of Menarche of Athletes-Reply

JAMA. 1982;247(24):3312-3313. doi:10.1001/jama.1982.03320490016014
Abstract

In Reply.—  An answer to the question that Dr Malina presented in his letter is already in our article. As is stated, since pooled data on age of menarche do not answer the question of whether the late age of menarche of athletes is due to late maturers choosing to be athletes or whether the physical training delays menarche, we questioned the 38 college runners and swimmers in our study as to the age of beginning regular athletic training, in addition to requesting their age of menarche. We found that those athletes whose training had begun before menarche had a mean age of menarche of 15.1± 0.5 years, whereas their teammates whose training had begun after menarche had a mean age of 12.8 ±0.2 years, similar to the controls and the general population. Covariance analysis showed that age of menarche and the age at which athletic training began could be

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