Age and gender features of thigh rheogram indicators in practically healthy adolescents

Abstract

According to many studies, the rheovasographic index of the thighs can detect slight changes in the vessels, do not constitute a critical inconvenience, but in advance indicate that more serious diseases of the lower limb are approaching. The purpose of the study is to determine the age and gender features of thigh rheogram indicators in practically healthy adolescents in the Podillia region of Ukraine. The rheographic parameters of the thighs of 103 practically healthy boys aged from 13 to 16 years old and 108 girls aged from 12 to 15 years, urban residents of the Podillia region of Ukraine, were determined using a cardiology computer diagnostic complex. The statistical processing of the obtained results was carried out in the license package "Statistica 5.5" using parametric and nonparametric methods for evaluating the obtained results. In 12-year-old girls, in comparison with other age groups, it was found that most of the amplitude indices (with the exception of the incisura amplitude), the time of the downstream part of the rheogram and the average speed of fast and slow blood flow are significantly higher, while the time of the rising part of the rheogram and fast and slow blood overflow and thumb vascular tone rates in most cases are significantly lower. In most cases, 13 and 14-year-old boys, compared to 15 and 16-year-old adolescents, the basic impedance and amplitude of the systolic wave, as well as most vascular tone rates and average slow-blood flow rates are significantly higher or tend to be higher. It has also been found that most of the time indicators (with the exception of slow blood flow time) in 14-year-old boys are significantly lower or tend to be lower than in other age groups of boys. When comparing rheogram data between boys and girls according to the calendar and biological age, the majority of amplitude and derivative indices, as well as the time of slow blood filling in 14 and 15-year-old girls, are significantly higher in girls. Boys have significantly higher values of the duration of the cardiac cycle and the time of the downstream part of the thigh rheogram, as well as all time and most indicators of vascular tone in 13-year-old boys than in 12-year-old girls. Thus, the expressed age and gender differences in the rheogram data of the thigh in practically healthy adolescents have been established.