This article analyses optimization guidelines for assessment of human regulatory and adaptive capabilities (RAC) using the cardiorespiratory synchronism (CRS) method. The study participants aged 19 ± 1 were randomized into two groups: main group (n = 30) and reference group (n = 30). In the main group, before conducting the CRS tests, a number of techniques were applied to facilitate reproduction of the set breathing rhythm by the subject: relieving one hand from the ECG electrode by recording a single lead (II or III), which is sufficient to monitor heart rate, for the subjectʼs convenience (with detecting motor asymmetry of the hemispheres); viewing an instructional video showing the algorithm of the upcoming test to the subject; ideomotor training; detecting the latent period of a simple sensorimotor reaction to sound and light stimuli as a preparation for the test. The degree of correspondence between the reproduced and the set breathing rhythms in the main group was 47.0 ± 15.7 % (M ± SD), which is higher than in the reference group. The maximum number of exact respiratory cycles repeated in a row in the first test also demonstrated the advantages of the main group, where this indicator was 10.3 ± 3.4 cycles. The number of respiratory cycles from the beginning of the first test to the exact reproduction of the set rhythm decreased in the main group compared to the reference group by 76.3 %. The correlation analysis revealed no relationship between RAC and the accuracy of breathing rhythm reproduction (correlation coefficient was −0.115 at p = 0.536). Testing duration in the reference group significantly (p < 0.001 according to Mann–Whitney U-test) exceeded that in the main group (by 10.2 min). Thus, the research demonstrated the effectiveness of the proposed techniques for optimizing the CRS test, which can contribute to an even wider spread of this method.
В. М. покровский, В. В. полищук кубанский государственный медицинский университет, краснодар, Российская ФедерацияThe influence of The precision of The seT respiraTorY rhYThm reproducTion on The parameTers of cardiorespiraTorY sYnchronism pokrovskii V. m., polischuk V. V. Kuban state medical university, Krasnodar, russian federationЦель работы -определение связи между точностью воспроизведения задаваемой частоты дыхания в пробе сердечно-дыхательного синхронизма (СДС) и получаемыми параметрами СДС. Показатель точности воспроизведения задаваемого ритма дыхания оценивался в 93 пробах как процентное отношение количества совпавших отметок стимулятора и максимальной амплитуды на пневмограмме к общему количеству поданных в течение пробы сигналов. Анализ показал независимость параметров СДС от точности воспроизведения задаваемого ритма дыхания. Следовательно, взаимодействие сердечного и дыхательного ритмов зависит от способности нервных центров к адаптации в определенном диапазоне, что позволяет объективно оценивать регуляторно-адаптивные возможности организма. Ключевые слова: сердечно-дыхательный синхронизм, регуляторно-адаптивный статус, сознательный контроль дыхания, частота дыхания, адаптацияThe aim of the study is to determine the presence of the relationship between the accuracy of reproduction of the set respiratory rate in the test of cardiorespiratory synchronism (CRS) and the obtained CRS parameters. The index of the accuracy of the reproduction of the set breathing rhythm was estimated in 93 tests as the percentage of the matched marks number of stimulator and the maximum amplitude on the pneumogram to the total number of signals given during the test. The analysis showed lack of dependence of the CRS parameters from the precision of the set breathing rhythm reproduction. Consequently, the interaction of the heart and respiratory rhythms depends on the ability of the nerve centers to adapt in a certain range, which makes it possible to objectively assess the regulatory and adaptive capabilities of the organism.
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