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Estimation of Body Density with a Highky Accurate Human Body Volumometer and its Medical Application.

高准确度人体体积计的身体密度估算及其医学应用。

基本信息

批准号：
62570235
负责人：
MARU Ruriko
金额：
$ 1.02万
依托单位：
Nippon University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1988
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-62570235/
关键词：
Body Volume Body Density Obesity

项目摘要

The cubic volume of human body was measured on 175 male subjects. consisting mainly of students of our university. by means of a high-precision volumenometer for human body manufactured with the science research subsidy for 1984 through 1986. With the increased precision of body weight measurement, a more accurate specific gravity for human body is required. Though oru data are based mainly on young males at present, measurements are continued on a wider range of subjects.Since some metrical probllems have been identified in the course of the research, various improvements have been introduced to increase the accuracy of measurements and minimize the invasive effects on subjicts. 1. Improvement of accuracy in body weight measurement In order to assure accurate body weight measurement corresponding to the values provided by the high precision volumometer for human body (range of reliable measurement: 50ml at minimum). we purchased a high-precision electoronic weighing machine (Sartorius … More F 150S. minimum rading: Ig). 2. Improvement of humidity control in the measuring capsule In the air-tight capsule, the body temperature and respiration of the subject cause substantial changes in the intracapsular temperature. which will lead to measurement errors. By approximating the temperature of the pressurized water to body temperature. the temperature changes at the time of measurement were reduced. The procedure. howeber, brought about changes in the pressure of aqueous vapor and thus necessitated the measurement of absolute temperature and the related corrections. 3. Relationship between the constitutional ratio among body constituents and the specific gravity of human body.The cubic volume and specific gravity of human body were measured on the subjects grouped according to their characteristics including age, sex, height, and body weight. Furthermore, a single subject was measured for various corporal features. The data were accumulated and standardized so that an index for body build would be obtained.The results so far obtained do not represent the general population due to the precominance of students of our university among the 20 subjects. Our attempts are still being continued to obtain a good representation of the population. Less

对 175 名男性受试者测量了人体的立方体积。主要由我们大学的学生组成。采用1984年至1986年科研补助费制造的高精度人体体积计。随着体重测量精度的提高，需要更准确的人体比重。尽管oru数据目前主要基于年轻男性，但测量仍在更广泛的受试者中继续进行。由于在研究过程中发现了一些计量问题，因此进行了各种改进以提高测量的准确性并尽量减少对受试者的侵入性影响。 1、提高体重测量的准确性为了保证准确的体重测量符合高精度人体容积计提供的数值（可靠测量范围：最小50ml）。我们购买了一台高精度电子称重机（Sartorius … More F 150S。最小等级：Ig）。 2. 改善测量胶囊内的湿度控制在气密的胶囊中，受试者的体温和呼吸引起胶囊内温度的显着变化。这将导致测量误差。通过使加压水的温度接近体温。测量时的温度变化减少。程序。然而，引起了水蒸气压力的变化，因此需要测量绝对温度并进行相关校正。 3、人体成分构成比与人体比重的关系。按年龄、性别、身高、体重等特征分组，测量人体的立方体积和比重。此外，还测量了单个受试者的各种身体特征。将数据进行累积和标准化，从而获得体质指数。由于我校学生在20个科目中占主导地位，因此目前获得的结果并不代表一般人群。我们仍在继续努力以获得人口的良好代表性。较少的