Abstract - Improving the Functional State of the Autonomic Nervous System in Greco-Roman Wrestlers During the Preliminary Base Training Stage
Aim. To improve the functional state of the autonomic nervous system of Greco-Roman wrestlers at the stage of preliminary basic training in the preparatory period.
Methods. The analysis of heart rate variability was utilized for wrestlers at baseline and after 6 months of training. The pedagogical experiment used 46 Greco-Roman wrestlers at the stage of preliminary basic training (second year of study). The average age of the studied wrestlers was 12.7 ± 0.4 years.
Results. Comparison of the repeated indicators of heart rate variability revealed significant differences between the main and control groups of wrestlers for almost all parameters. The standard deviation of mean values from 10-minute segments in the examined wrestlers in the experimental group was better by 7.00 ms (p<0.001) compared to the control group of wrestlers. The square root of the sum of the squares of differences in consecutive pairs was better by 7.01 ms (p<0.001), the total power of regulatory systems was better by 202.40 ms² (p<0.001), the very low-frequency component of the spectrum was better by 41.00 ms² (p<0.001), the high-frequency component of the spectrum was better by 160.03 ms² (p<0.001), the sympathovagal index was better by 1.15 units (p<0.01), the index of centralization was better by 1.00 unit (p<0.01), the amplitude of mode was better by 18.00% (p<0.01), the stress index was better by 133.97 units (p<0.001), the percentage contribution of the low-frequency component of the spectrum was better by 10.70% (p<0.001), and the high-frequency component of the spectrum was better by 11.74% (p<0.001).
Conclusions. Findings have suggested that using recovery methods during the pedagogical experiment, which were used individually in the main group of wrestlers contributed to the improvement of the functional state of the autonomic nervous system of Greco-Roman wrestlers at the stage of preliminary basic training. Statistically significant differences (p<0.05-0.001) in favor of the main group were observed for the majority of indicators.