Dynamics of adaptation and energy parameters of boxers before and after training

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S.Yu. Nikitchenko
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy (Moscow).
Email: sernik@rgau-msha.ru

No. 6, pp. 9–11

Received: 02.04.2026 | Published: 02.06.2026

CC BY 4.0

Abstract

Objective of the study is to identify the features of the dynamics of adaptation and energy parameters in boxers under the influence of high-intensity training load. Methods and structure of the study. The research was conducted at the sports and fitness complex of the Russian State Agrarian University and covered 24 male athletes aged 18–25. The assessment of functional state was carried out using heart rate variability indicators (SDNN, RMSSD), heart rate, lactate concentration in capillary blood and the integral index of functional state. Methods of cardiorhythmography and biochemical analysis were applied. Results and conclusions. A statistically significant increase in lactate concentration after load was established (p<0.05), accompanied by a decrease in heart rate variability indicators and an increase in heart rate. The obtained data indicate the dominance of anaerobic glycolysis and the activation of the sympathetic division of the autonomic nervous system. Training loads in boxers cause pronounced changes in adaptation and energy parameters. It is practically expedient to use heart rate variability indicators and lactate levels for the operational monitoring of the functional state of athletes and the individualisation of training loads. Regular monitoring of these indicators makes it possible to timely identify signs of fatigue, optimise the ratio of load and recovery and increase the effectiveness of the training process.

Keywords

boxing, adaptation, energy metabolism, heart rate variability, lactate, training load

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