title: [The features of the relationship of the indices of physical and sexual development of teenagers of the city of Chelyabinsk--the industrial center of South Ural].
abstract: There was made a determination of the correlation relationships (CR) between indices of physical and sexual development (SD) of 1997 adolescents aged from 11 years 6 months to 17 years 5 months 29 days residing in the industrial center of the Southern Urals characterized by high levels of air pollution (API 7-13). Benzo(a)pyrene and formaldehyde contribute the greatest part to air pollution. The level of SD, time of appearance of secondary sexual characteristics was revealed to be interrelated with the pace of physical development of adolescents, regardless of the gender Children with an accelerated pace of physical development (macrosomatotype) are characterized by advancing sexual development and the earlier appearance of secondary sexual characteristics. Slow pace of physical development (microsomatotype) is characterized by SD retardation and the later appearance of secondary sexual characteristics. The degree of intensity of secondary sexual characteristics and such anthropometric indices as height, body mass are interrelated and have age and gender differences: the maximal CR for these indices is typical for boys aged from 13 to 16 years as for girls--of 13 and 14 years old.
authors.forename: A N
authors.initials: AN
authors.lastname: Uzunova
authors.forename: D A
authors.initials: DA
authors.lastname: Lopatina
authors.forename: S Yu
authors.initials: SY
authors.lastname: Petrunina
authors.forename: A R
authors.initials: AR
authors.lastname: Sharapov
authors.forename: E Kh
authors.initials: EKh
authors.lastname: Kharrasova
mesh_terms: D000293:Adolescent; D041923:Adolescent Development; D000886:Anthropometry / Q000379:methods*; D015992:Body Mass Index; D002648:Child; D002657:Child Development; D005260:Female; D006801:Humans; D008297:Male; D012426:Russia; D046468:Sexual Development; D013333:Student Health Services; D013334:Students / Q000706:statistics & numerical data*; D014505:Urban Population / Q000639:trends