TY CONF TI Evaluation of the impact of HRV biofeedback trainings on psychophysiological parameters and individual technical elements in sports (using martial arts as an example) KW biofeedback training KW heart rate variability (HRV) KW resonant breathing KW technical elements KW cardiorespiratory synchronization KW reaction time KW martial arts. JO VIII ALL-RUSSIAN SCIENTIFIC AND PRACTICAL CONFERENCE WITH INTERNATIONAL PARTICIPATION "SPORTS INFORMATICS DAY" AU Toloraya, N.G. AU Andreeva, A.M. AU Belousov, I.A. AU Kovaleva, A.V. PY 2024 PB Russian Association of Computer Science in Sport