Інструментальна фіксація у дошкільників координації рухів нижніми кінцівками

The article examines the parameters of metrological characteristics used to record the results of testing the coordination of lower limbs using the device we developed and in the traditional manner. The aim of the study was to experimentally determine the effectiveness of using a device developed on the basis of the latest electronics to record the results of the lower limb coordination test in preschoolers. Material and methods. The study involved 42 children aged 6 years, of whom 21 were girls (6.1±0.2 years) and 21 were boys (6.0±0.4 years). The children had no health abnormalities and were selected randomly from a total sample of 84 children. The developed device was used to record the results of the foot-tapping test (FTT), which allows assessing the development of lower limb coordination. The following metrological characteristics of the results were determined: reliability and validity. We analyzed separately the data of girls and boys obtained after each of the three monthly tests. We compared the results obtained by the traditional method of their registration and those obtained using the device we developed. Results. Recording the results of children performing the FTT test by the traditional method (visual assessment of the result) and using the device we developed showed the existence of a discrepancy in their reliability and validity. The values of their coefficients showed that the second method was significantly better than the first. Thus, for girls, the reliability coefficients were within 0.895-0.907, for boys – 0.890-0.901, the validity coefficients – respectively within 0.607- 0.648 and 0.602-0.610. In all cases, such coefficient values indicated a fairly high degree of reliability and validity. The traditional method of recording the results was characterized by a low degree of validity and reliability. In addition, no differences were found in the average results of girls and boys, which indicated a similar trend in the development of coordination of movements of the lower extremities. Conclusions. When studying the specified type of coordination in preschool children, it is advisable to use the device we developed to record the results. Monitoring the development of coordination should be carried out systematically. When analyzing the data obtained, it is not necessary to form a separate sample of girls and boys.