Reaction of heart rate regulation to extreme sport activity in elite athletes

Abstract

Purpose: to study elite athletes’ (wrestlers) heart rate regulation reactions to extreme sport activity. Material: were studied of 21 elite wrestlers who specialized of Greco-Roman Wrestling. The heart rate regulation were studied via the cardiomonitor «Polar-RS800CX». The statistical, spectral and scattergrams parameters of heart rate variability (HRV) were investigated. Results: the results indicate increase of stress level of autonomic heart rate regulation’s mechanisms with inhibition of elite athletes’ sympathetic and parasympathetic activity in competition condition. The precompetition reaction of elite athletes is characterized by decline of determinism and increase of stochastic organization of system of heart rate regulation in competition activity. Under extreme psycho-emotional load in competition condition the predominance of higher autonomic centers over cardio-vascular centre with transition on the neuro-humoral subcortical and metabolic centers of heart rate regulation in elite athletes were observed. Conclusions: under extreme psycho-emotional load in competition condition predominance of higher autonomic centers over cardio-vascular centre with transition on the neuro-humoral subcortical and metabolic centers of heart rate regulation were observed in elite athletes.