Basic studies for the practical uses of the A-mode type Ultrasonic Device

这位Head Investigator等人开发了一种使用A型超声仪测量皮下脂肪厚度的改进方法，从而在三年内举行了公共卫生活动的实际使用。结果如下：1)为了建立不同性别、年龄和部位的皮下脂肪层厚度标准，对0~79岁的男性1477人和女性1933人进行了测量。2)为了利用超声测量的皮下脂肪厚度数据估算体脂质量，研究者对50个样本进行了详细的测量，并建立了体脂质量的估计公式，经统计学检验，其显著性水平小于5%，有望在不久的将来得到日本人群的肥胖标准或皮下脂肪厚度的标准分布。

An improved method for measurement of subcutaneous fat thickness using an A-mode type ultrasonic device has been developed by this Head Investigator et al.,so that the practical uses for public health activities have been held during three years. The results are wound up as following two items:1) In order to set up the standard of the thickness of subcutaneous fat layer by sex, age and locations of body, the investigators measured 1477 male and 1933 female who consist of aged 0 to 79 years old. Mean,standard deviation ,minimum and maximum value were reported here.2) In order to estimate body fat mass using the data of subcutaneous fat thickness by ultrasonic measurement, detail careful measurement of 50 samples has been held by the investigators, and set up the estimation formula for the body-fat-mass which are tested statistically in the significance level less than 5%.It will be able to get criteria of obesity or standard distribution of subcutaneous fat thickness in Japnese population in very near future.