ArticleFrontiers in neuroscience2021
A Close Examination of the Use of Systolic Time Intervals in the Calculation of Impedance Derived Cardiac Autonomic Balance and Regulation.
Article in Frontiers in neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 8 citations in OpenAlex.
- Cardiac Autonomic Dynamics Differentially Shape Cognitive and Affective Theory of Mind: Evidence From Respiratory Manipulation.Psychophysiology · 2026Article
- A Randomized Controlled Trial of Heart Rate Variability Biofeedback Explores Cardiac Autonomic Control as a Psychophysiological Mechanism Supporting Social Cognition.Applied psychophysiology and biofeedback · 2026Article
- Stress-induced pacemaker desynchronization in the sinoatrial node.Frontiers in cardiovascular medicine · 2026Article
- A Multimodal System for Comprehensive Cardiovascular Monitoring Using ECG, PCG, and PPG Signal Fusion.Sensors (Basel, Switzerland) · 2025Article
- Cardiac Autonomic Balance Is Altered during the Acute Stress Response in Adolescent Major Depression-Effect of Sex.Life (Basel, Switzerland) · 2023Article
- The impact of social disadvantage on autonomic physiology of latinx adolescents: The role of environmental risks.New directions for child and adolescent development · 2022Article
- Autonomic function predicts cognitive decline in mild cognitive impairment: Evidence from power spectral analysis of heart rate variability in a longitudinal study.Frontiers in aging neuroscience · 2022Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Traditionally, impedance derived measures of cardiac autonomic balance (CAB) and regulation (CAR) are calculated using indices of heart rate variability (HRV) that primarily reflect parasympathetic nervous system activity (e.g., high-frequency HRV | HF-HRV) and pre-ejection period (PEP; a systolic time interval and measure of sympathetic activity). However, HF-HRV and PEP are considered measures of chronotropic and inotropic cardiac influence, respectively. Left ventricular ejection time (LVET) is a systolic time interval that reflects sympathetic chronotropic influence, and therefore may be a more appropriate measure for calculating CAB and CAR compared to PEP. Thus, the current study evaluates both PEP and LVET in the calculation of CAB and CAR. Data from 158 healthy participants (mean age = 19.09 years old, SD = 1.84 years) were available for analyses. CAB and CAR values were calculated using both HF-HRV and the root mean square of successive differences, in addition to both PEP and LVET, in accordance with previously established guidelines. Analyses showed that correlations were significantly weaker between CAB and CAR calculated using LVET for both HF (
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