Dynamics of indicators of the functional state of the body and working capacity in young schoolchildren with different school success

Objective: to study the indicators of the functional state of the body and working capacity in the dynamics of learning in elementary school children with different school success.Materials and methods: the study included 573 elementary school students. Group I – 82 students with excellent academic performance Group II – 491 children with good academic performance. The vegetative index of Kerdo (VIC), the Rufier test, the Genchi test, and the adaptive index (AP) were determined by the method of F. Halberg. The mental performance of younger schoolchildren was studied using Schulte tables.Results: the values of VIC in group I children were 2.5–3.5 times higher. The difference in IR between the groups increased, amounting to 32.88% in the 4th grade. The Gencha sample was characterized by lower values (by 1–2 seconds) in group I children. The difference in AP in the 1st grade was 4.73 sec., then in the 4th grade –6.86 sec. The Schulte tables showed higher values of work efficiency, workability and endurance coefficient along with a decrease in speed and strength indicators and physical endurance.Conclusions: by the end of primary school, the vegetative balance in group I children is between normo- and sympathicotonia. The Gencha test made it possible to establish insufficient resistance of the body to hypoxia. Children of group II demonstrated better adaptive capabilities of the CCC, speed and strength indicators and physical endurance. The data obtained must be taken into account in the pedagogical process with younger schoolchildren and require the development of differentiated recreational activities.