title: [The impact of increased physical exertion on adrenal cortex state and puberty of the boys].
abstract: The research of the adrenal cortex (AC) functional state of 11-15-year-old boys-sportsmen, conducted on the basis of free and bound cortisol (Cf, C) daily excretion indicators, as well as their comparative characteristics with the test class boys revealed that the increased physical activities in the form of regular sport trainings have the overwhelming impact on the age dynamic of AC and puberty of the young sportsmen. It is shown that the Cfexcretion of the 12-14-year-old-sportsmen is characterized by the consistently high indices, and by age of 15 it is observed a significant decrease in the setting of high C values. In contrast to the boys that do not go in for sports and cortisol in urine of which is significantly lower (p < 0.05), but for the age of 13 to 15 it is noted its progressive increase (p < 0.05). A relative slowing ofthe boys-sportsmen puberty process (secondary sexual characters development) is revealed, AC glucocorticoid function pubertal transformation of these boys are completed earlier and in a greater degree reflect its adaptive behavior, that provides raise of child's body resistance to increased physical exertion's influence.
authors.forename: M V
authors.initials: MV
authors.lastname: Shaĭkhelislamova
authors.forename: F G
authors.initials: FG
authors.lastname: Sitdikov
authors.forename: A A
authors.initials: AA
authors.lastname: Sitdikova
authors.forename: G G
authors.initials: GG
authors.lastname: Kaiumova
mesh_terms: D000293:Adolescent; D000302:Adrenal Cortex / Q000502:physiology*; D002648:Child; D006801:Humans; D008297:Male; D005082:Physical Exertion / Q000502:physiology; D011627:Puberty / Q000502:physiology*; D012741:Sexual Maturation / Q000502:physiology; D013177:Sports