Aanthropometric indicators and parameters of cardiorespiratory system of children residing in rural areas were studied.The type of self-regulation of blood circulation was determined. It is shown that the actual indicators of vital capacity of lungs in all the surveyed students were significantly below expected values and showed a decrease in ventilation abilities of the lungs. Diastolic blood pressure value was greater among boys 11 and 13 years old compared to 12 - year-old. The actual heart rate exceeds a proper value for the majority of the surveyed children, testified to the increase in the tonic activity of the sympathetic division of the autonomic nervous system and was confirmed by the positive values of vegetative Сerdo index. Sympathetic regulation noticeable prevailed in boys 11 and 13 years and girls 12 years of age. Natural reduction of sympathetic influences with age was not revealed. Minute volume of blood at a greater number of children must exceed the rate and the prevailing type of self-regulation of blood circulation was hyperkinetic. The occurrence of favorable eukinetic type was smaller. Changes in heart rate, systolic blood pressure, diastolic blood pressure after exercise were talking about the occurrence of adverse type of reaction of the cardiovascular system. The value of the index of functional changes indicated that with increasing age adolescents surveyed, there was an increase in the occurrence of a satisfactory adaptation, and reduce the occurrence of tension of adaptation mechanisms, poor adaptation. The values of the index of functional changes pointed to the tension of mechanisms of adaptation and poor adaptation, indicating the existence of some compensatory mechanisms to maintain an optimal level of physical development and body functions of the examined children.
kardiorespiratornaya sistema, fizicheskoe razvitie, shkol'niki sel'skoy mestnosti
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