COMPARATIVE ANALYSIS OF MORPHOFUNCTIONAL PARAMETERS AMONG SEVEN-YEAR-OLD GIRLS LIVING IN DIFFERENT ENVIRONMENTAL CONDITIONS

Among the issues of paramount importance, a special place is given to the problem of children's health preservation. A modern metropolis with a developed chemical and petrochemical industry has some chemicals in the air that often exceed the maximum permissible norm, and the impact of even a small concentration of harmful substances causes a change in the functioning of body organs and tissues. The danger lies in the fact that a cumulative effect is observed at a relatively low level of biochemically active substance content, leading to the imbalance of organism functioning. This trend of research is of practical importance and is of great scientific and practical interest, since it reflects the general state of morphofunctional indices of children at the age of 7-9 years living in different environmental conditions. Thus, they conducted a comprehensive study of the cardiorespiratory system functions, the anthropometric indicators of seven-year-old girls studying at the first grade of a comprehensive school living in different environmental conditions. The following methods were used in the study: physiological, biochemical, statistical and the method of directed selection of the studied contingent. Based on the results of the study, the comparative analysis was carried out concerning the results of children living in different environmental conditions. In the process of the performed study, they found out that environmental pollution is one of the causal factors reducing physical development and adaptability of individual systems (cardiovascular, external respiration system) among seven-year-old girls. Keywords: heart, anthropometry, cardiorespiratory system.