My colleague, Dr. Matt Reed and I published a public online body shape modeling site Childshape.org. This is the first online child body shape modeling tool. This site provides an intuitive interface to model a child body shape with a few parameters such as stature, body mass index, and sitting height to standing ratio. Users also can download the modeled body shape to a local repository as an STL file. Also, a set of estimated body landmarks including joint locations can be downloaded as well as the anthropometric dimensions of the selected body shape.
The model was developed using statistical methods based on laser scans of 137 children ages 3 to 11. More information about the technique behind can be found in this paper “Parametric body shape model of standing children aged 3–11 years“.