STATUS OF BIOELECTIC MYOCARDIAL ACTIVITY IN 400 M DISTANCE RUNNERS DEPENDING ON THE SEX
Journal Title: Вісник Одеського національного університету. Біологія - Year 2018, Vol 23, Issue 2
Abstract
Introduction. The method of electrocardiography deeply reflects the essence of bioelectric processes in myocardium, characterises deviation from the norm state, demonstrating locality and specificity of pathogenic changes, and makes it possible to estimate functional readiness of both cardiovascular system and the organism on the whole, without applying complicated and costly methods of apparatus control. The aim is to study bioelectric activity of myocardium in 400 m distance runners of a single qualification depending on the sex. Methods. At the beginning of the preparatory period of the training process, 131 400 m distance runners (60 women and 71 men) in the age from 13 to 30 years, qualification from III level to the international class master (MSIC) underwent an electrocardiographic test. Research results and conclusions. Bradycardia was less common in women (38.3 %) than in men (57.7 %). Changes in ECG were recorded at the same frequency in women (43.3 %), and men (56.3 %). Of the total number of ECG changes, there were statistically more men with changes in the terminal part of ventricular complex (VC) (19.2 % vs. 10 %), SEVR (55 % vs. 34.6 %) and atherosclerosis (10 % vs. 3.9 %). The analysis of changes in ECG in the form of SEVR and IRBBB in athletes of both sexes showed the following: SEVR is found in 23.7 % and IRBBB - in 13 %. After exercise in the form of a submaximal test PWC170 in athletes with atherosclerotic rhythm and changes in the terminal part of the ventricular complex, normalization of ECG was observed. Conclusions. In runners with CLC syndrome and BPBLBB, according to echocardiography, pathological changes were not detected, and the presence of IRBBB and SEVR should be considered as peculiarities of the ECG for this category of athletes.
Authors and Affiliations
E. L. Mikhalyuk
Keywords
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- EP ID EP504253
- DOI 10.18524/2077-1746.2018.2(43).147327
- Views 81
- Downloads 0
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