title: [The age- and sex specificity of physical development of schoolchildren].
abstract: The age-related dynamic changes in the parameters of physical-development (body height, weight, chest circumference, carpal dynamometry, vital capacity of lungs) and of physical training (sprint and long-distance race, chin-up for boys/teenagers, 30-sec. trunk raising for girls, standing broad jump) were studied in schoolchildren, aged 7 to 17, in 5 Federal Okrugs of Russia (Center, North-West, Urals, South and Siberia). The ratios between low, average and high levels of physical development were found to be, on the whole, identical in boys and girls, whereas, the level of physical training in schoolgirls was higher. The average levels of physical development and training were changing little with age; simultaneously, significant age-related fluctuations were established for the highest and lowest levels.
authors.forename: S I
authors.initials: SI
authors.lastname: Izaak
authors.forename: T V
authors.initials: TV
authors.lastname: Panasiuk
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D005260:Female; D006128:Growth; D006801:Humans; D008297:Male; D010806:Physical Education and Training; D012426:Russia; D012737:Sex Factors; D012800:Siberia