Puberty is the crucial period for formation of somatotypes.
青春期是形成体型的关键时期。
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The results showed: (1) Among boys, the mean somatotypes in age groups 6—8 are balanced mesomorph, 9—12 are central, and change to meso ectomorph in age 13—17;
The results showed that the mean somatotypes of male were 4.0-4.4-2.1 in the endomorph-mesomorph category and that of female were 6.2-4.1-1.6 in the meso-endomorph category.