title: [Influence of the initial vegetative tone on the condition of haemodynamics of younger schoolboys].
abstract: The comparative analysis of the functional condition of cardiovascular system and their reaction to the local isometric exercise for the 7-8-year-old boys, who are practically healthy, and in relation ship with the initial tone of the vegetative nervous system is given in the article. By means of variation pulsometer analysis, as well as by means of tetrapolar breast rheography it is found that children with sympathetic influences on heart rate (67.00%-55.55% out of all the studied) in comparison with those, who are normal or vagotonic show the higher activity of neuromediator link in sympathoadrenal system, as well as the increased stroke and minute blood volume on aveioge tachycardia background. With sympathotonic boys it is found that the leadiry link in the mechanism of urgent adaptation of the cardiovascular system to local static exercise there may be the spastic reactions of bloodstream, which allows us to distinguish such-like schoolchildren as a high-risk group in terms of appearance of vegetative dystonia with hypertensire vascular syndrome.
authors.forename: M V
authors.initials: MV
authors.lastname: Shaĭkhelislamova
authors.forename: A A
authors.initials: AA
authors.lastname: Sitdikova
authors.forename: F G
authors.initials: FG
authors.lastname: Sitdikov
authors.forename: G G
authors.initials: GG
authors.lastname: Kaiumova
mesh_terms: D002648:Child; D015444:Exercise; D006339:Heart Rate; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D013564:Sympathetic Nervous System / Q000503:physiopathology*