Cardiorespiratory coupling in health and disease

Area of Science:

• Neuroscience
• Physiology
• Autonomic Nervous System Research

Background:

• Cardiac and respiratory functions are closely integrated by overlapping brainstem networks.
• Cardiorespiratory coupling (CRC) promotes healthy physiology, but its deterioration can lead to autonomic dysautonomia.
• Current understanding of the mechanisms underlying CRC and cardiorespiratory dysautonomia is incomplete.

Purpose of the Study:

• To review the current understanding of cardiorespiratory coupling (CRC).
• To discuss the neurobiological basis of respiratory sinus arrhythmia (RSA).
• To examine disease states associated with cardiorespiratory dysautonomia and methods for assessing CRC.

Main Methods:

• Review of existing literature on cardiorespiratory coupling.
• Discussion of neurobiological mechanisms of respiratory sinus arrhythmia (RSA).
• Analysis of methodologies for measuring heart rate variability and RSA.

Main Results:

• The review synthesizes information on the neurobiological underpinnings of CRC and RSA.
• It highlights various disease states characterized by cardiorespiratory dysautonomia.
• Current quantitative methods for assessing CRC, including heart rate variability and RSA, are discussed.

Conclusions:

• A comprehensive understanding of CRC mechanisms is crucial for addressing cardiorespiratory dysautonomia.
• Improved quantitative assessment methods for CRC are needed.
• Further research into the interplay between cardiac and respiratory control is warranted.