Total body potassium and gross body composition in relation to age.
Total body potassium and gross body composition in relation to age.
复制标题
体内总钾和总身体成分与年龄的关系。
DOI：
10.1093/geronj/15.4.348
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发表时间：
1960
期刊：
影响因子：
--
通讯作者：
W. Langham
中科院分区：
文献类型：
--
作者：
T. H. Allen;E. Anderson;W. Langham
对1589名男性、女性和儿童进行了身体钾的测量，测量结果按性别和年龄制成表格。根据已发表的数据，使用相对于年龄的身体水分百分比图，从受试者的已知体重中获得相应的身体水分估计值。由于早期的工作（Absts。3985，3990，第30卷），可以计算出，在规定的健康和禁食12小时的条件下，在身体水分W和脱水、脱脂原生质体质量Ms之间存在恒定的关系，M3=0.276W，与年龄和性别无关。根据该关系，可以将钾测量值K与M3的估计值相关联。结果表明，K：Ms比值在成年人中随年龄的增长而下降，女性低于男性。研究结果的意义进行了讨论。对于一些受试者，发现基础代谢率与身体K密切相关。I.麦克唐纳
Measurements of body K, made by scintillation counting of the natural γ radioactivity of the40K in the body, are tabulated by sex and age for a total of 1589 men, women and children. Corresponding estimates of body water were obtained from the known weights of the subjects, using graphs of percentage body water against age, constructed from published data. As a result of earlier work (Absts. 3985, 3990, Vol. 30) it can be calculated that under stated conditions of health and abstinence from food for 12 h there is a constant relation,M3=0.276W, independent of age and sex, between body water,W, and the dehydrated, defatted protoplasmic body mass,Ms. From this relation, it was possible to relate the potassium measurements,K, to estimates ofM3. The results indicate that the ratioK: Msfalls in adults with increasing age and that it is lower for women than for men. The significance of the findings is discussed. For some of the subjects basal metabolic rate was found to be closely correlated with body K.-I. McDonald.