[Chest circumference of East German children in mathematical analysis]

Determinations of chest circumference for GDR children and youth in the years 1956 to 1958 as compiled by Marcusson and Oehmisch ( Marcusson 1961) are submitted to nonlinear regressions using a growth function proposed by the author. In addition the puberal growth spurt and growth velocities are calculated and represented in tables and graphs. Finally specific properties of growth development in chest circumference are confronted with those of the foot, tibia and radius as well as head circumference and body height. Possible changes due to acceleration will scarcely effect the latter considerations.