Weight can be judged from body measurements most accurately by the use of standards that take notice of the thickness of the chest, for instance, the chest girth.1 Furthermore, it has been shown by modern biometric methods that, in normal men weight is more nearly correlated with chest girth than with height.2 Then, evidence has been presented that the girth is more reliably measured by taking the arithmetical average of the inspiratory and expiratory girths than by taking the resting girth.
To certain further questions regarding the best method of chest measurement, this paper offers answers.
Is the weight as closely correlated with the girth at the xiphoid level as with the girth at the nipple level? If so, the former may be preferable, since it is clearly a more nearly bony measurement, and therefore probably a sounder gage in obese or emaciated persons. Besides, there is some
PARMENTER DC, GRAY H. CHEST MEASUREMENT AS A GAGE OF BODY WEIGHT. JAMA. 1922;79(26):2159. doi:10.1001/jama.1922.02640260031011