Peculiarities of neurovegetative regulation in children and adolescents with sarcopenia according to heart rate variability indicators.

OBJECTIVE

Aim: To find what extent the state of neurovegetative regulation in children and adolescents with sarcopenia differs from their peers without signs of sarcopenia.

PATIENTS AND

METHODS

Materials and

Methods

The sarcopenic index and hand grip strength, which were simultaneously in the range below the 25th percentile of the reference values of these indicators for the corresponding age and gender, were considered the criteria for sarcopenia. A bioelectrical impedance analyzer, "TANITA MC- 780 MA" (Japan), was used to obtain the SI indicator. The functional state of autonomic regulation was assessed using the HRV-scanner hardware and software complex (Biosign, Germany).

RESULTS

Results

After processing the examination results according to our algorithm, it became clear that there were no children with signs of autonomic dysfunction in the GWS and BWS subgroups. At the same time, in the GS and BS subgroups, the percentage of children with autonomic dysfunction was 69% (30 out of 42 people) and 74% (28 out of 38 people), respectively.

CONCLUSION

Conclusions

Registration of a standard 5-minute rhythmocardiogram against the background of spontaneous breathing should be supplemented with a 1-minute breathing test in the diaphragmatic breathing mode with an imposed rhythm of 6 breathing movements per minute, which allows for assessing the presence or absence of parasympathetic dysfunction.