title: [The dynamics of the amplitude-time parameters of the seismocardiograms of students with different levels of physical fitness].
abstract: The reliable scientific data on the physiological mechanisms of the heart activity regulation have been obtained using a seismocardiographic method. Analyzing physical and mental loads of students in different periods of the academic year, it has been revealed that an increase in the amplitude of the first seismocardiographic complex and the development of the amplitude coefficient occur after the maximum cycle-ergometric loading, that is a good response of the contractile myocardium to loading. During the winter term, at rest an increase in the amplitude of the first seismocardiographic complex and a decrease in the amplitude of the second one are observed in most of the students, that is, probably, connected with the emotional and intellectual factors of the session period. The optimal value of energy coefficient per second is set up (it is 1.5 val.). It reflects a relationship between the energy processes during heart systole and diastole.
authors.forename: A V
authors.initials: AV
authors.lastname: Mahl'ovanyĭ
mesh_terms: D000328:Adult; D004562:Electrocardiography / Q000379:methods*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010809:Physical Fitness / Q000502:physiology*; D012016:Reference Values; D012621:Seasons; D013997:Time Factors; D014732:Vibration
vernacular_title: Dynamika amplitudno-chasovykh parametriv seĭsmokardiohramy studentiv z riznym rivnem fizychnoï pratsezdatnosti.