Binary symbolic dynamics analysis to detect stress-associated changes of nonstationary heart rate variability
| Autor: | Andreas Savelsbergh, Conrad Spellenberg, Arndt Büssing, Dirk Cysarz, Peter Heusser |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Adult Male medicine.medical_specialty Physiology RR interval Symbolic dynamics lcsh:Medicine Autonomic regulation Article 03 medical and health sciences Young Adult 0302 clinical medicine Stress test Heart Rate Internal medicine Stress (linguistics) Human behaviour Trier social stress test medicine Heart rate variability Autonomic nervous system Humans lcsh:Science Multidisciplinary business.industry lcsh:R Arrhythmias Cardiac Healthy Volunteers 030104 developmental biology Cardiology lcsh:Q Female business Biomedical engineering 030217 neurology & neurosurgery Stress Psychological Interbeat interval |
| Zdroj: | Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020) Scientific Reports |
| ISSN: | 2045-2322 |
| Popis: | Psychological stress may have harmful physiological effects and result in deteriorating health. Acute psychological stress acts also on cardiac autonomic regulation and may lead to nonstationarities in the interbeat interval series. We address the requirement of stationary RR interval series to calculate frequency domain parameters of heart rate variability (HRV) and use binary symbolic dynamics derived from RR interval differences to overcome this obstacle. 24 healthy subjects (12 female, 20–35 years) completed the following procedure: waiting period, Trier Social Stress Test to induce acute psychological stress, recovery period. An electrocardiogram was recorded throughout the procedure and HRV parameters were calculated for nine 5-min periods. Nonstationarities in RR interval series were present in all periods. During acute stress the average RR interval and SDNN decreased compared to rest before and after the stress test. Neither low frequency oscillations (LF), high frequency oscillations (HF) nor LF/HF could unambiguously reflect changes during acute stress in comparison to rest. Pattern categories derived from binary symbolic dynamics clearly identified acute stress and accompanying alterations of cardiac autonomic regulation. Methods based on RR interval differences like binary symbolic dynamics should be preferred to overcome issues related to nonstationarities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|