A Novel Algorithm for the Heart Rate Variability Analysis of Short-Term Recordings: Polar Representation of Respiratory Sinus Arrhythmia

1999 ◽  
Vol 32 (1) ◽  
pp. 56-66 ◽  
Author(s):  
Migeotte Pierre-Franois ◽  
Yves Verbandt
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Respiratory Sinus Arrhythmia ◽  
Heart Rate Variability Analysis ◽  
Short Term ◽  
Sinus Arrhythmia ◽  
Variability Analysis ◽  
Polar Representation ◽  
Novel Algorithm

scholarly journals Heart Rate Variability Analyses in Parkinson’s Disease: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 11 (8) ◽  
pp. 959
Author(s):  
Konstantin G. Heimrich ◽  
Thomas Lehmann ◽  
Peter Schlattmann ◽  
Tino Prell
Keyword(s):  
Parkinson’S Disease ◽  
Heart Rate ◽  
Parkinson's Disease ◽  
Heart Rate Variability ◽  
Meta Analysis ◽  
Cardiac Activity ◽  
Heart Rate Variability Analysis ◽  
Short Term ◽  
Variability Analysis ◽  
Parasympathetic Regulation

Recent evidence suggests that the vagus nerve and autonomic dysfunction play an important role in the pathogenesis of Parkinson’s disease. Using heart rate variability analysis, the autonomic modulation of cardiac activity can be investigated. This meta-analysis aims to assess if analysis of heart rate variability may indicate decreased parasympathetic tone in patients with Parkinson’s disease. The MEDLINE, EMBASE and Cochrane Central databases were searched on 31 December 2020. Studies were included if they: (1) were published in English, (2) analyzed idiopathic Parkinson’s disease and healthy adult controls, and (3) reported at least one frequency- or time-domain heart rate variability analysis parameter, which represents parasympathetic regulation. We included 47 studies with 2772 subjects. Random-effects meta-analyses revealed significantly decreased effect sizes in Parkinson patients for the high-frequency spectral component (HFms2) and the short-term measurement of the root mean square of successive normal-to-normal interval differences (RMSSD). However, heterogeneity was high, and there was evidence for publication bias regarding HFms2. There is some evidence that a more advanced disease leads to an impaired parasympathetic regulation. In conclusion, short-term measurement of RMSSD is a reliable parameter to assess parasympathetically impaired cardiac modulation in Parkinson patients. The measurement should be performed with a predefined respiratory rate.

Microgravity alters respiratory sinus arrhythmia and short-term heart rate variability in humans

2003 ◽  
Vol 284 (6) ◽  
pp. H1995-H2006 ◽  
Author(s):  
P-F. Migeotte ◽  
G. Kim Prisk ◽  
M. Paiva
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Respiratory Sinus Arrhythmia ◽  
Normal Gravity ◽  
Short Term ◽  
Sinus Arrhythmia ◽  
Sympathetic Control ◽  
Frequency Components ◽  
Controlled Breathing ◽  
Male Subjects

We studied heart rate (HR), heart rate variability (HRV), and respiratory sinus arrhythmia (RSA) in four male subjects before, during, and after 16 days of spaceflight. The electrocardiogram and respiration were recorded during two periods of 4 min controlled breathing at 7.5 and 15 breaths/min in standing and supine postures on the ground and in microgravity. Low (LF)- and high (HF)-frequency components of the short-term HRV (≤3 min) were computed through Fourier spectral analysis of the R-R intervals. Early in microgravity, HR was decreased compared with both standing and supine positions and had returned to the supine value by the end of the flight. In microgravity, overall variability, the LF-to-HF ratio, and RSA amplitude and phase were similar to preflight supine values. Immediately postflight, HR increased by ∼15% and remained elevated 15 days after landing. LF/HF was increased, suggesting an increased sympathetic control of HR standing. The overall variability and RSA amplitude in supine decreased postflight, suggesting that vagal tone decreased, which coupled with the decrease in RSA phase shift suggests that this was the result of an adaptation of autonomic control of HR to microgravity. In addition, these alterations persisted for at least 15 days after return to normal gravity (1G).

scholarly journals Fetal autonomic brain age scores, segmented heart rate variability analysis, and traditional short term variability

2014 ◽  
Vol 8 ◽  
Author(s):  
Dirk Hoyer ◽  
Eva-Maria Kowalski ◽  
Alexander Schmidt ◽  
Florian Tetschke ◽  
Samuel Nowack ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Heart Rate Variability Analysis ◽  
Short Term ◽  
Variability Analysis ◽  
Brain Age ◽  
Short Term Variability
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