TY JOUR TI An algorithm for quantifying cardiorespiratory synchronization to assess the functional state and intersystems interactions in athletes KW cardiorespiratory synchronization KW heart rate KW respiratory sinus arrhythmia KW heart rate variability KW resonant breathing KW spectral analysis KW emotional reactions KW psychophysiological conditions JO Russian Journal of Information Technology in Sports AU Kovaleva, A.V. AU Anisimov, V.N. PY 2024 IS 1 PB Russian Association of Computer Science in Sports