Heart rate variability and slow-paced breathing:when coherence meets resonance.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing physiological and neural mechanisms without systematic review methodology
PubMed 35167847 · doi:10.1016/j.neubiorev.2022.104576
What was done
This narrative review synthesizes literature on slow-paced breathing, focusing on the mechanisms linking resonance frequency breathing (~0.1 Hz) to cardiovascular, autonomic, and central nervous system effects.
What was found
The abstract reports no empirical data, sample sizes, or statistical metrics. Mechanistically, it describes that breathing at ~0.1 Hz aligns respiratory, blood pressure, and cardiac phases into temporal coherence, increasing cardiac oscillations, vagally-mediated heart rate variability, and baroreflex sensitivity. This coherence extends vagal afferent stimulation to interoceptive regions and couples with increased cerebral blood flow and oxygen delivery oscillations to trigger neural activations in limbic areas.
Why it matters
It outlines a unified physiological framework connecting peripheral autonomic synchronization during slow breathing to central interoceptive and limbic brain activation.
Limits
The paper is a narrative review with no primary data, quantitative synthesis, or systematic search methodology reported in the abstract. The central neural cascades described represent theoretical and mechanistic pathways rather than directly quantified clinical outcomes.
Cited by
- supports Resonance frequency breathing is typically targeted at 0.1 Hz, corresponding to a 10-second respiratory cycle (6 breaths per minute).