The purpose of this study was to determine the relationships between the three somatotype componets and selected structural, strength and motor performance characteristics of 12 year old boys. Zero-order correlations, first-order partials, and multiple correlations were computed in an effort to find the variables most highly related to each somatotype component.

Although no single anthropometric measure had a correlation of sufficient magnitude with any somatotype component to justify prediction of the component, such prediction was possible by means of regression equations. Utilizing measures of standing height, body weight, and leg length, regression equations were developed which yielded somatotype ratings which were within the range of accuracy of experienced raters. Thus, a practical method of determining the somatotype of young boys was developed without the need for photography or subjective ratings.