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Related Concept Videos

Factors Influencing Heart Rate01:30

Factors Influencing Heart Rate

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The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
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Correlation between ECG and Cardiac Cycle01:25

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The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
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Pulse rhythm01:30

Pulse rhythm

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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
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Electrocardiogram01:29

Electrocardiogram

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An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
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ECG Interpretation of Rhythms01:24

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An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
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Measuring Cardiac Autonomic Nervous System ANS Activity in Toddlers - Resting and Developmental Challenges
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Methods for analyzing infant heart rate variability: A preliminary study.

Alex Claiborne1, Alexandra Williams2, Colby Jolly1

  • 1Human Performance Laboratory, Department of Kinesiology, East Carolina University, Greenville, North Carolina, USA.

Birth Defects Research
|April 20, 2023
PubMed
Summary
This summary is machine-generated.

Reliable infant heart rate variability (HRV) analysis is crucial for understanding autonomic development. This study compares two data file types, finding differences that highlight the need for a standardized infant HRV analysis protocol.

Keywords:
BiocomECGHexoskinKubiosMATLABPPGR-R intervalheart rate variability

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Area of Science:

  • Pediatric cardiology
  • Autonomic nervous system development
  • Infant physiological monitoring

Background:

  • Heart rate (HR) and heart rate variability (HRV) are key indicators of autonomic nervous system development in infants.
  • Reliable HRV recordings are essential for accurate assessment, but a standardized protocol is currently lacking.
  • Understanding infant autonomic responses requires robust HRV measurement techniques.

Purpose of the Study:

  • To evaluate the reliability of a common infant HRV analysis procedure using two different data file types.
  • To compare heart rate and heart rate variability parameters derived from electrocardiograph (ECG) and R-R interval (RRi) files.
  • To identify potential discrepancies and inform the development of a standardized methodology.

Main Methods:

  • Continuous 5-10 minute electrocardiograph (ECG) recordings were obtained from 1-month-old infants at rest using a Hexoskin Shirt-Junior.
  • Both .wav (ECG) and .csv (RRi) files were extracted, with RRi generated by VivoSense software.
  • MATLAB scripts processed files for analysis in Kubios HRV Premium, with statistical comparisons using SPSS.

Main Results:

  • Significant differences were observed in the root mean squared successive differences between the RRi and ECG recording types.
  • Only heart rate (HR) and low-frequency HRV measures showed significant correlation between the two file types.
  • The Hexoskin recording system combined with MATLAB and Kubios analysis facilitates infant HRV assessment.

Conclusions:

  • While the Hexoskin system and subsequent analysis tools enable infant HRV analysis, distinct procedural differences yield varying outcomes.
  • A standardized methodology for infant heart rate and heart rate variability analysis is necessary to ensure consistent and reliable research findings.
  • Further research is needed to establish best practices for infant HRV data acquisition and processing.