"For purposes of this [research], body dimensions and mobility descriptions are limited to the range of personnel considered most likely to be space module crewmembers and visiting personnel. It is assumed that these personnel will be in good health, fully adult in physical development, and an average age of 40 years. A wide range of ethnic and racial backgrounds may b represented, and crewmembers may be either male or female." -NASA

Anthropometry is a branch of anthropology concerned with comparative measurements of the human body and its parts as well as the variables which impact these measurements.  Anthropometric data consists of collections of measurements, often presented in tabular format or annotated diagrams of human figures.  The primary dimensions measured are of bone, muscle, and adipose tissue. This data is used in human factors/ergonomics applications in order to ensure that designs and standards are realistic." - Tufts