Abstract:
More attention is paid to the study of the peculiarities of physiological processes
occurring in the growing body, since the formation and protection of the health of children, adolescents
is the main task of any state. The purpose of this research is to study the features of the
morphological development of children of primary school age in Pavlodar city.
The study of anthropometric parameters of schoolchildren (boys and girls) 9-11 years of Pavlodar
was conducted. Studied were such variables as body length (BL), body mass (BM), circumference
of the chest (CC), calculated the Quetelet index (QI) and stenia index (SI).
Within the scope of research, differences in physical development between boys and girls were
revealed. For example, in terms of length, body weight, boys are superior to girls aged 9-10 years,
while at 11 years of age girls are more important in these parameters, which is explained by earlier
entry into the puberty period compared to peers. According to such indicators as the Quetelet and
stenia index, significant sexual differences were observed only at the age of 9.
Thus, the study of the physical development of boys and girls 9-11 years showed an increase in
the ontogenesis of anthropometric indicators. An increase in the Quetelet index in the compared age
of both sexes was revealed, which characterizes the growth processes. Stenia index in ontogenesis
decreased in both sexes.
