The sample of 2020 male subjects, divided into 10 sub-samples of 202 subjects aged 12 to 21, was analyzed for changes of specific variance of at tissue in relation to age. The specific variance was estimated under the factor model which contained, as latent dimensions, the longitudinal and transverse dimensionality of skeleton, body volume and body mass, fat tissue. These were isolated on the basis of 45 anthropometric variables; among them were 9 measures of skin folds. It was found that specific variance of fat tissue increase in relation to age, in accordance with the polynomial of the third order, with the inflection points at ages 14 and 19. A significant aberration from this function was found at the age 16. Results were interpreted as effects of the law of differentiation and as a consequence of inertial effects of onset and termination of the period of intense sexual maturation.

Na uzorku 2020 ispitanika muškog spola, podijeljenom u 10 subuzoraka od po 202 ispitanika starih od 12 do 21 godinu, analizirane su promjene specifične varijance masnog tkiva u funkciji dobi. Specifična varijanca procijenjena je pod faktorskim modelom, koji je kao latentne dimenzije sadržavao longitudinalnu i transverzalnu dimenzionalnost skeleta, voliumen i masu tijela i masno tkivo, izolirane na osnovu 45 antropometrijskih varijabli među kojima je bilo i 9 mjera kožnih nabora. Nađeno je da specifična varijancamasnog tkiva raste u funkciji dobi u skladu sa polinomom trećeg reda, sa točkama infleksije u 14. i 19. godini. Značajno odstupanje od ove funkcije utvrđeno je u 16. godini. Rezultati su interpretirani kao efekti zakonitosti diferencijacije, i kao posljedica inercijalnih efekata ulaska i izlaska iz perioda intenzivnog spolnog sazrijevanja.