Anthropometric data holds immense importance and necessity in industry, and its applications are constantly expanding. From everyday products like clothing, furniture, kitchen and bathroom fixtures, work surfaces, and entertainment facilities, to architectural design, transportation, and military equipment, all must be designed based on human body dimensions. Beyond industrial design, clothing design, and human factors engineering, anthropometric data can also be applied to academic fields such as human factors design, healthcare, medical research, and epidemiology. Changes in human lifestyles and nutritional intake patterns are altering characteristic human dimensions; for example, the increase in obesity necessitates the establishment and regular updating of current anthropometric data to link this data with medical advancements.

From an application perspective, anthropometric databases should include both static and dynamic data to provide comprehensive and complete anthropometric information for users in various fields. This will enable the design and planning of more suitable tools and living environments for the public, thereby improving quality of life and ensuring safety during work and leisure.

Currently, anthropometry research primarily focuses on adults. However, the period from infancy to adolescence is the stage of most rapid physical change in humans, making anthropometry for children truly necessary. Safety facilities in playgrounds and schools, such as stair height and railing spacing, are issues of great concern to parents of young children. They hope the government can establish new standards to reduce the occurrence of dangers; however, there is currently a lack of sufficient and objective data to evaluate the merits of existing standards. Children grow and develop rapidly, with significant changes in height, weight, and body proportions across different age groups. Adult anthropometry data cannot be applied to rapidly growing children. Therefore, establishing a database of children's anthropometry data is indeed necessary because human limb parameters are indispensable for human science research, such as ergonomics and medical research. Furthermore, in clothing design and playground design, referencing static and dynamic human limb parameters can help create and plan suitable products and environments.

Human limb parameters vary with age, gender, and body type. This project plans to group participants by age and use a three-dimensional motion analysis system to collect dynamic human motion parameters. The project will measure the range of motion of each limb segment in different postures for boys and girls aged 2 to 6 years. Statistical software will then be used for analysis and comparison. The aim of this research project is to establish a dynamic anthropometric database for Taiwanese children aged 2 to 6 years. This database will supplement previous static anthropometric databases for children, providing a more complete and comprehensive local anthropometric database for application in industrial design, medical research, human factors technology, and other fields. This database will be used to design suitable play equipment, tables, chairs, and daily necessities for children, creating a suitable and safe growth environment to assist children's development and learning.