Long-term monitoring of heart rate variability and state anxiety in allergic patients : comparison of four stress protocols.
| Autor: | Soláriková, Petra |
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| Další autoři: |
Brezina, Igor, 1948-
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| Jazyk: | angličtina |
| Předmět: | |
| Druh dokumentu: | Non-fiction |
| ISSN: | 0009-062X |
| Abstrakt: | Abstract: Introduction. Heart rate variability (HRV) represents one of the most used biomarkers of cardiovascular health that offers insight on autonomic nervous system (ANS) activation. This study deals with the issue of abnormal functioning of the ANS in allergic individuals who were monitored during three consecutive years. Methods. Our aim was to analyze the influence of various stress protocols on HRV parameters, which could be used as markers of ANS activity and on subjective perception of stress described by STAI-X1 (State-Trait Anxiety Inventory). Four different stress protocols are compared here: 1. Psychosocial stress (PSST), 2. Cognitive stress, 3. Measurements in natural conditions and 4. PSST group test (GPSST). This study compares outcome of the four protocols also with referential HRV measurement. Results and Discussion. The findings show that the stress tasks which featured a social component (PSST a GPSST) triggered a more intensive physiological response in comparison to cognitive stress or with natural conditions measurements. We recorded an interesting and significant finding related to allergy: allergic subjects showed a tendency towards decreased heart rate frequency (HR) and increased overall HRV in all tests. However, in case of subjectively perceived stress, no differences between groups were recorded. Besides, the functioning of the ANS showed also gender differences represented by an increased HR and a decreased HRV in women. Conclusion. Our results show increased HR and decreased HRV in stress conditions in all stress protocols. Our data support the prior findings of sympathetic withdrawal and/or parasympathetic hyperactivation in individuals suffering from allergy, which could be one form of the dysregulation of the ANS. |
| Databáze: | Katalog Knihovny AV ČR |
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