ANDERSON E C, LANGHAM W H
Science. 1959 Sep 18;130(3377):713-4. doi: 10.1126/science.130.3377.713.
Potassium-40 measurements on 1590 males and females ranging in age from less than 1 year to 79 years show sex differences and age trends in the ratio of muscle mass to the mass of other body constituents. A difference first at approximately 12 years of age. While females show a continuous decrease in potassium concentration, males show a rapid increase between the ages of 14 and 16. During adult life both sexes show a persistent and parallel decrease, which may be related to physiologic aging.
对年龄从不到1岁到79岁的1590名男性和女性进行的钾-40测量显示，肌肉质量与身体其他成分质量之比存在性别差异和年龄趋势。大约在12岁时首次出现差异。女性的钾浓度持续下降，而男性在14至16岁之间迅速上升。在成年期，两性都呈现持续且平行的下降，这可能与生理衰老有关。
