EFFECT OF GRADED PASSIVE ORTHOTICS ON HAEMODYNAMICS OF HEALTHY MEN WITH DIFFERENT LEVELS OF AUTONOMIC TONE
DOI:
https://doi.org/10.32782/naturaljournal.8.2024.8Keywords:
tilt test, central haemodynamics, autonomic tone, heart rate variabilityAbstract
The ability of the human cardiovascular system to change the parameters of its activity in accordance with changes in environmental conditions is a manifestation of the general biological law of reactivity. At the same time, biological systems in general and haemodynamics in particular are characterised by variability. Therefore, the study of changes in haemodynamics to standard loads in individuals with different typological features of autonomic regulation is an urgent problem of biology and is of practical importance for creating optimal conditions for human life. The aim of the study was to investigate the peculiarities of changes in central haemodynamics during til-test in healthy men with different levels of autonomic tone. Measurements of blood pressure, cardiac output, and phase analysis of heart pressure were performed during a graded (15°, 30°, 45°, 60°) passive orthotics test and during the recovery period after it in 76 healthy young men aged 18-25 years. Cardiac performance was recorded by electrocardiography and thoracic rheography. The level of autonomic tone was assessed by heart rate variability. In healthy young men with different baseline levels of autonomic tone, differences were observed in the levels of blood pressure, cardiac output, cardiovascular dynamics, chest blood filling and, in particular, the duration of the RR interval at rest lying down. It has been shown that the initial level of autonomic tone significantly affects changes in central haemodynamics during tilt test. The reactivity of haemodynamic parameters at an inclination angle of 60° of the passive orthopaedic test depends on the initial level of autonomic tone and is highest in parasympathotonics. For the first time, the peculiarities of the reactivity of the human cardiovascular system to passive orthotics were analysed depending on the initial level of autonomic tone. The regularities revealed in the study will increase the diagnostic value of the tilt test and its use in rehabilitation.
References
Андрощук О.І., Кудій Л.І., Рибалко А.В., Черненко Н.П. Хвильова структура серцевого ритму при ортопробі у осіб з різним рівнем вегетативного тонусу. Вісник Черкаського університету. Серія біологічні науки. 2021. № 1. С. 4–11. https://doi.org/10.31651/2076-5835-2018-1-2021-1-4-11.
Коваленко С.О. Характеристика та теоретичні основи методів аналізу варіабельності серцевого ритму. Український журнал медицини, біології та спорту. 2017. № 2. С. 223–233. https://doi.org/10.26693/jmbs02.02.223.
Ковтун М.Ф. Мінливість, змінюваність, еволюція. Вісник Черкаського університету. Серія біологічні науки. 2018. № 1. С. 49–59. https://doi.org/10.31651/2076-5835-2018-1-2-49-59.
Цибенко В.О. Кровообіг. Фізіологія з основами патофізіології. Черкаси. Черкаський ЦНІІ. 2010. 295 с.
Androshchuk O.I., Zavhorodnia V.A. Correlation of vegatative tone indicator with Kerdo index and heart rate variability. Вісник Черкаського університету. Серія біологічні науки. 2018. № 1. С. 3–6. https://doi.org/10.31651/2076-5835-2018-1-1-3-6.
Aponte-Becerra L., Novak P. Tilt Test: A Review. J Clin Neurophysiol. 2021. № 38 (4). Р. 279–286. https://doi.org/10.1097/WNP.0000000000000625.
Cheshire W.J., Goldstein D. Autonomic uprising: the tilt table test in autonomic medicine. Clin Auton Res. 2019. № 29 (2). Р. 215–230. https://doi.org/10.1007/s10286-019-00598-9.
Glantz S.A. Primer of biostatistics. 7th edition, McGraw-Hill: Medical, New York, 2012, 320 p.
Gómez-Medina A., Lozano-Castillo A., Valencia S. Statistics, Cerebrovascular Reactivity, and Prior COVID-19. AJR Am J Roentgenol. 2023. 221 (3). 399. https://doi.org/10.2214/AJR.23.29355.
Islam MT. Radiation interactions with biological systems. Int J Radiat Biol. 2017. 93 (5). 487–493. https://doi.org/10.1080/09553002.2017.1286050.
Jelavić M., Babić Z., Hećimović H., Erceg V., Pintarić H. The role of tilt-table test in differenteal diagnosis of unexplained syncope. Acta Clin Croat. 2015. № 54 (4). Р. 417–423.
Kubichek W.G., Patterson R.P., Wetsol D.A. Impedanse cardiography as a noninvasive method of monitoring cardiac function and other parameters of the cardiovascular system. Ann. N.Y. Acad. Sci. 1970. № 2. P. 724–732.
Lattanzi S., Słomka A., Divani A.A. Blood Pressure Variability and Cerebrovascular Reactivity. Am J Hypertens. 2023. 36 (1). 19–20. https://doi.org/10.1093/ajh/hpac114.
Shesterina D.V., Palamarchuk A.L., Kovalenko S.O. The effect of low-intensity intermittent pneumatic compression in persons with different types of regulation of the autonomic nervoussystem on central hemodynamics. Fiziol. Zh. 2023. 69 (3). 92–98. https://doi.org/10.15407/fz69.03.092.
Sutton R., Fedorowski A., Olshansky B., Gert van Dijk J., Abe H., Brignole M., de Lange F., Kenny R., Lim P., Moya A., Rosen S., Russo V., Stewart J., Thijs R., Benditt D. Tilt testing remains a valuable asset. Eur Heart J. 2021. № 42 (17). Р. 1654–1660. https://doi.org/10.1093/eurheartj/ehab084.
White L., Jones H., Davies A. What is a tilt table test and why is it performed during the investigation of syncope? Br J Hosp Med (Lond). 2021. № 82 (10). Р. 1–7. https://doi.org/10.12968/hmed.2020.0462.
