The State of the heart rate regulation mechanisms of junior students of the Physical Training Department in the application of dosed physical loading in closed cycle
Introduction. The study of functioning of the heart during different types of motive activity attracts a lot of researchers’ attention nowadays. Adaptation reactions of organism in general and particularly in sports should be studied from the point of view on heart contracts frequency, as well as on the regulator system state/
Purpose. The immediate aim is to study the dynamics of heart rate regulation mechanisms of youths – students of junior courses of Physical Training Teachers Department under the influence of dosed physical loading in closed cycle.
Methods. The research involves 32 participants – students of the first course, who were re-examined on the second course. The testing in a closed cycle was held by the method of D. N. Davidenko and co-authors involving electromechanical bicycle ergometre. The state of the heart rate regulation mechanisms was analyzed at the stage of regulative muscles rest, at the reserve moment with heart contracts frequency equal to 150-155 beats per minute, at the end of loading and at the 5th minute of rehabilitation with the help of program “Caspico” based on the cardiac rhythm mathematical analysis by Baevsky R. M.
Results. Average statistical values of heart rate of Physical Training Department junior students measured at the state of relative muscles rest correspond to the permissible age quantities diapason. The loading in closed cycle caused changes of vegetative balance and as a result heart rate regulation mechanisms tension. Evidently, the modal value (Mo) and the heart rate variation magnitude (∆X) decrease and the mode amplitude (AMo) and tension index (IN) increase. The increase Мо/∆Х is indicative of the humoral regulation channel activation within the increase of predominant influence of adrenergic regulation mechanisms over cholinergic ones. At the end of bicycle ergometre test, the power of tension being at the zero level, the stabilization of heart rate values is registered, although the tension level of heart rate regulation exceed the initial values in both groups examined. After the dosed physical loading increase of parasympathetic tonus and decrease of sympathetic branch of vegetative nervous system occur, which is characterized by the increase of Mo and ∆X data, decrease of AMo, AMo/∆X, Mo/∆X and tension index (IN), being the integral exponent of regulation mechanisms. By the fifth minute of rehabilitation full restitution of regulation level is not marked, that stipulates the necessity to prolong after work out control period.
Originality. It’s for the first time that there have been registered and analyzed the data of the heart rate regulation mechanisms of junior students of the Physical Training Department directly during the muscles loading in a closed cycle. The diapason of heart rate regulation level reaction has been determined at different stages of testing.Conclusions. The conducted research proved that the loading in a closed cycle of junior students of Physical Training Department is marked by a definite tension of heart rate regulation mechanisms, which never reached extreme values and thus could be estimated as optimal for the certain power of loading. Complete rehabilitation of initial level of heart rate regulation of 17-19-year-old youths never occurs by the 5th minute of rest after the muscles work out.
Platonov, V.N. (1997). A general theory of preparation of sportsmen in Olympic sport. Kiev, Olympic Literature, 584 p [in Russian].
Plahtіj, P. D. (2000). Physiology of Humans. Part 2 – Kam’janec'-Podіl's'kij, 127-130 p [in Russian].
Apanasenko, G. L. (2000). Аthlete's health. Nauka v olimpijskom sporte (Science in the Olympic sport), 1, 15-18 [in Russian].
Butchenko, L. A. & Kushakovskij, M. S. (1993). The Heart of a Sports Person. Saint-Petersburg, 48 p [In Russian].
Karpman, V. L. & Abrikosova, M. A. (1984) Certain general patterns of adaptation of the human’s cardiovascular system to physical loads. Uspehi fiziologicheskih nauk (The successes of Physiological Sciences), 2, 97-121 [in Russian].
Bosenko, A. І. (2002). Heart rate regulation in 20-22 year-old gymnasts doing some kinds of gymnastic all-round competitions. Teorіja і metodika fіzichnogo vihovannja і sportu (Theory and methods of physical education and sports), 4, 19-23 [in Ukrainian].
Baevskij, R. M. (1998). Mathematical analysis of heart rate changes during stesses. Moscow.: Nauka, 236 p [in Russian].
Baevskij, R. M. & Motyljanskaja, R. E. (1986). Heart rate at sportsmen. Moscow.: Nauka, 173 p [in Russian].
Vovkanich Ljubomir, Vinogradskij Bogdan, Vlasov Andrej, Berezhanskij Viktor et all (2010). The use of parameters of heart rate variability index for the characteristic of functional efficiency of biathlonists. Moloda sportivna nauka Ukraїni (Young sport science of Ukraine), 3, 50-55 [in Ukrainian].
Mihaljuk, Ye. L. (2006). Complex estimation of cardiovascular and vegetative nervous system state in top level athletes. Sportivna medicina (Sports medicine), 2, 82-87 [in Russian].
Kovalenko, S. O. (2005). Analysis of the heart rhythm variability using median spectrogram method. Fіzіologіchnij zhurnal (Journal of physiology), 3, 92-95 [in Ukrainian].
Bosenko, A. I. (1986). Discovering functional capacity of cardiovascular and central nervous system in adolescents in case of intensive muscular work. Extendent abstract of candidate’s thesis. Tartu [in Russian].
Davidenko, D. N. (2011). Method of assessing body’s functional reserve mobilization in case of its response to controlled activity. Nauchno-teoreticheskij zhurnal "Uchenye zapiski universiteta imeni P. F. Lesgafta" (Scientific and theoretical journal “Schoolarly notes of Lesgaft University”), 12(70), 52-57 [in Russian].
Davidenko, D. N., Andrianov, V. P., Yakovlev, G. M. at all (1984). Method of assessing the body’s functional reserve when using exercise tolerance test over one cycle of power change. Puti mobilizacii funkcional'nyh rezervov sportsmena: Sbornik nauchnykh trudov( Ways of mobilization of athlete’s functional reserve: Collection of scientific papers), pp. 35-41. Leningrad: GDOIFK [in Russian].
Kovalenko, S. O. & Yakovlev, M. Ye. (2005). The computer program for registration and analysis of heart rate and respiration ("CASPICO"). The author testimony of Ukraine №11262, Abstract in the official journal "Copyright and Related Rights", 6, 338 [in Ukrainian].
Glanc, S. (1998). Statistics of medicine and biology. (A. Yu. Danilova, Trans). Moscow: Praktika [in Russian].
Korenberg, V. B. (2008). Sports metrology. Moscow: Fizicheskaja kul'tura [in Russian].
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