The purpose of this study was to calculate somatotypes that can typify body size for high school rugby players who underwent multiple physical measurements over a 2.5-year period, and to show the changes in body size observed during the three years of high school. Somatotypes of high school rugby players changed as their athletic career lengthened, and they became more muscular with each passing hour.
(Mariko, I., Kumiko, O., Kunitaka, M., Yoshika, M., Yumiko, M., Masaharu, K.)