Measurement of Change in Body-weight.
نویسندگان
چکیده
In clinical practice and in metabolic research, it is often necessary to determine whether body-weight has changed, and if so by how much, during the period of observation. Unless the changes are gross, single measurements at the beginning and the end of the period may be misleading because the trend of weight is obscured by rapid fluctuations from day to day. 'These fluctuations may be quite large. For example, Elkinton & Danowski (1955) in a stbdy of one man recorded changes as high as I kg from one day to the next, with a standard deviation which amounted to o.51Oh of mean body-weight. Edholm (1961) observed twelve young soldiers in training for 7 weeks, and found daily changes exceeding 0.5 kg on more than 100 occasions and changes exceeding I kg on thirty occasions. Durnin (1961) measured the weights of forty-four men living under very controlled conditions and noted changes from day to day as high as I kg. Taggart (1962) in a study of one woman found losses or gains within 24 h of up to 0.8 kg. In our study, nineteen subjects ranging from babies shortly after birth to middleaged adults have been measured to define the extent of daily weight changes in relation to body size, age and sex. With the exception of one pregnant woman in hospital, the subjects were living their ordinary lives.
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عنوان ژورنال:
- The British journal of nutrition
دوره 18 شماره
صفحات -
تاریخ انتشار 1964