Structural analysis of prognostic diagnostics of cardiovascular system adaptive capacity and assessment of psycho physiological resistance to stressоgenic cognitive loads

Abstract

Aim: To conduct a structural analysis of cardiological signs of adaptation to stressogenic cognitive loads by identifying factor features of correlations between heart rate variability (HRV) and coping-testing data indicators. Materials and Methods: 43 people aged 19.7±1.8 years (23 boys and 20 girls) were monitored for their HRV. Methods included DC-06000 portable ECG recorder, 3X series “badge” type (single channel) and COPE Test. The study process includes four stages. Results: As a result of further factor correlation analysis, it was revealed that Factor 1 “HRV Stress Indicators” has a negative correlation (p<0.05) of “moderate” strength ρs= -0.363 with Factor 2 “Strategies to avoid problems and stresses” and a positive correlation of “weak” strength ρs=0.167 with Factor 3 “Psychoemotional Indicators”. If two factors correlate with each other, it indicates they are related and can interact, which is important for adequate interpretation of the results of factor analysis. Conclusions: Structural analysis of the complex of cardiological signs of adaptivity to stressogenic cognitive loads and coping-testing data revealed the existence of three correlated factors: Factor 1 “HRV Stress Scores”, Factor 2 “Strategies to avoid problems and stress”, Factor 3 “Psychoemotional indicators”. The revealed negative correlation of Factors 1 and 2 may indicate that in case the impact of Factor 2 “Strategies to avoid problems and stress” increases, the intensity of Factor 1 “HRV Stress Scores” (i.e., stress signs according to the indicators of heart rate variability) may decrease.