Results from an Analysis of Japanese Anthropometric Data (2014–2016) –Estimation of the Physical Dimensions of Adult Japanese Women–

Abstract

Over 20 years have passed since clothing sizes were revised according to Japanese Industrial Standards (JIS), and studies are exploring a revision of those sizes based on a 2014–2016 anthropometric database of Japanese adults. Clothing sizes according to the JIS need to accord with the recently implemented International Standard ISO 8559-3. The current study estimated the physical dimensions of Japanese in order to create body measurement tables in accordance with ISO 8559-3. Anthropometric measurements from 1,633 women in the 2014–2016 anthropometric database of Japanese adults were used to analyze a total of 8 groups of women: the 1,633 women as a whole (1 group), women were categorized into 1 of 3 body types according to DROP (3 groups), and women in 1 of 4 age groups (age under 25, age 25–39, age 40–54, and age 55 or over; 4 groups). Multiple regression analysis was used to examine a combination of variables based on measurements of stature, bust girth, waist girth, hip girth, and weight. Two variables— stature and bust girth—were deemed to be appropriate explanatory variables reflecting how well clothing fit the upper body. Regression coefficients were determined using multiple regression analysis, and body measurement tables were created by body type according to DROP and by age group based on calculated constants and coefficients. In addition, body measurement tables were created by adding 3 additional variables - waist girth, hip girth, and weight. Numerical models allow the estimation of a wide variety of body types of contemporary Japanese. In addition, intervals between items, which were calculated by estimating physical dimensions, can be used in processes such as patternmaking, grading, and assessing the fit of clothing.