To the Editor.—
In his review of our book "The Runner: Energy and Endurance," Dr Frederick1 states that he was "frustrated by numerous errors... and flabbergasted by the lack of reference citations." May I respectfully point out that reference citations (as many as 62) are given (pp 145 to 147) and, moreover, that these include full titles. I should also like to take issue with Dr Frederick on the question of specific errors. Ron Hill2was the first marathon runner to use glycogen loading. The experts in the field of nutrition and body weight agree on 26% (or slightly more), not 23%, of the body weight as fat in the average young adult female.3,4 The view that a decrease in body fat can produce amenorrhea and that this may be a biologic means of contraception receives strong support from Rose Frisch4 in her article in Biological
Newsholme EA, Leech AR. The Runner: Energy and Endurance. JAMA. 1985;253(17):2494–2495. doi:10.1001/jama.1985.03350410040013
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