Abstract
this investigation describes the somatotype components and somatotype as a whole in Chilean children and adolescents. a cross-sectional study was conducted in Valparaiso, Chile. The somatotypes of 1,409 schoolchildren (747 males) aged 6 to 18 yearswere assessed using the Heath-Carter anthropometric method. Comparative category analyses (endomorph, mesomorph, and ectomorph) wereperformed using t-tests. To analyze whole somatotypes along two and three dimensions, the somatotype dispersion mean (SDM) and somatotypeattitudinal mean (SAM), respectively, were used in addition to a somatochart representation. the somatotype of the male sample showed a marked mesomorph-endomorph biotype (4.9-4.8-2.1), whereas that for the femalesample showed a mesomorphic endomorph classification (5.8-4.3-1.8). The samples differed significantly by sex, with an increased endomorphiccomponent observed in females aged 13 to 18 years old. These sex differences were primarily evident in adolescents with high somatotypevalues in two or three dimensions (SDM ≥ 3.0; SAM ≥ 1.2), indicating high between-group dispersion. The somatocharts showed displacementof the endomorphic components for both sexes, particularly females. the results provide strong evidence that biotype changes have increased, primarily in terms of relative adiposity (i.e., the endomorphiccomponent) and predominantly in adolescent girls.
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