Figure 1
From: Body circumferences: clinical implications emerging from a new geometric model
Basic cylinder model (left) and additional hypothetical model with body volume (V) expansion including two different cylinders placed in series (right). In the basic cylinder model and sphere, circumferences (C) as indicated in the figure are proportional (∝) to the square root of volume/height (V/H) (i.e., V/H0.5) and volume is proportional to the product of height and circumference squared. Cylinder 1 in the double cylinder model increases in volume more rapidly than cylinder 2 and this difference in the rate of expansion influences the scaling of total volume/height to the respective circumferences as indicated in the figure. Abbreviations: D, diameter; H, height; R, radius.