TY - GEN N1 - This is an author translation of the original Russian paper ID - cogprints6840 UR - http://cogprints.org/6840/ A1 - Mukhin, Dr Valery Y1 - 2008/07// N2 - The results let us suppose that there are at least four periodical phenomena of HRV. Two of them have not been discovered and physiologically explained yet. It has also been confirmed that heart rate oscillations are quasiperiodic and their frequencies vary widely over the main frequencies. Despite of difference of the peak frequencies the waves of factor loadings are overlapped. Therefore, power of spectral density within any frequency range could not measure activity or it?s changing of a modulating physiological mechanism. PB - Russian medical military academy KW - heart rate variability KW - structure KW - spectral analysis TI - Frequency Structure of Heart Rate Variability SP - 492 AV - public EP - 493 ER -