1 Department of Anthropology, University of Minnesota, Minneapolis, Minnesota
Total body water of the boys in this study was higher by 1.63 1 and by 3.75% than total water, expressed either in absolute or relative values, of the girls. These mean differences between the sexes were significant. The absolute quantity of body solids was higher in the girls by 0.44 kg. This difference was statistically insignificant. However, body solids expressed as a percentage of body weight were found to be higher by 3.75% in the girls, a difference which was statistically significant.
The relative estimate of fatness by five skinfold measurements revealed all the skinfolds to be smaller in the boys. In particular, the upper arm and the thigh skinfolds were smaller in the boys to a statistically significant extent.
The relative estimate of muscle mass made from the three calculated diameters showed that the boys had slightly greater musculature on their limbs. However, none of these differences proved to be statistically significant.
Submitted on February 21, 1966