title: [Changes in the activation level in the EEG's of adolescents as a result of school work and its attendant hypokinesia].
abstract: The integral activity of main frequency ranges of the rest EEG was studied in two groups of schoolchildren at the end of the schoolyear. One half of each group consisted of boys, the other one of girls. The groups differed in the number of physical culture lessons per week (2 and 8). The boys of the two-lessons group manifested a higher integral oscillation activity over the whole EEG spectrum as compared with the boys of the eight-lessons group; this was considered as a drop of activation level. At the same time the girls of the two-lessons group revealed a higher integral activity within the theta range and a lower one within other ranges; this was estimated as an EEG manifestation of traces of tense alertness. Judging by the result of dispersion analysis, the influence of chronic hypokinesia on the recorded EEG components is much greater than that of the school activities.
mesh_terms: D000293:Adolescent; D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D009068:Movement; D012737:Sex Factors; D013334:Students
vernacular_title: Izmeneniia urovnia aktivatsii na EEG podrostkov kak sledstvie uchebnoĭ deiatel'nosti i soputstvuiushcheĭ eĭ gipokinezii.