Errors in the measurement of human body

Abstract

To use the values of mesurement of human body effectively, we should know the maximum errors about each item of mesurement. Therefore the present authors carried out the mesurements of six mesured by 6-8 mesurers about 43 items. From these values 99% critical interval was calcurated and classified by the mean of mesured values. The 99% rate of confidence “Ck” was obtained as follows;Ck=t0.01⋅Sk√Nk+1/Nk/MkNk: Number of mesurersSk: Standard diviation (unbiased)Mk: Mean of mesured valuesThe mean value and standard diviation of 99% rates of confidence of 6 mesured were obtained. These means and standard diviations were divided into 6 groups as seen on Table 3 and 4. The former is called as the Degree of Confidence and the latter is called as the Degree of Stability. From these data it can be concluded that the item with 4 figures of number of mesured value generally includes the maximum error of 3%, one with 3 figures does 15%, one with 2 does 25%.