MATHEMATICAL ANALYSIS OF HEART RATE VARIABILITY IN PRACTICE OF HIGH LEVEL SPORTS

V.Nechaev, V.Konovalov, V.Gryaznov

Research Laboratory of AllRussian Academy of Physical Culture, Moscow,
Institute of Physical Culture, Omsk,
Institute for Problems of Chemical Physics RAS, Chernogolovka,
Russia

Method of mathematical analysis of heart rate variability is applied for estimation of physical state and correction of training process in athletes specialized in long distance and marathon running and heel-and-toe walking. Authors have many-year experience of using of this method in medical and training practice. This experience shows on restrictions of standard method of analysis of heart rate variability (Baevskii method) in cases of prevailing of slow waves of heart rate over its respiration components. In these situations "stress index" of Baevski can give results that are not so reliable as in opposite case (when amplitude of "fast" respiration component of heart rhythm is much more than slow waves amplitude). To remove this defect we propose "modified stress index". To compute its value numerical filtering is used for "cleaning" of original heart rate record and removing low frequency components. Application of this method for estimation of adaptation to training load of high level athletes is demonstrated.

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Nechaev, V. Mathematical analysis of heart rate variability in practice of high level sports / Nechaev V., Konovalov V., Gryaznov V. // Человек в мире спорта : Новые идеи, технологии, перспективы : Тез. докл. Междунар. конгр. - М., 1998. - Т. 1. - С. 148.