meta_analysis
    2020
    High Quality

    Heart rate variability biofeedback and slow breathing for parasympathetic activation: a meta-analysis

    Lehrer P, Kaur K, Sharma A, Shah K, Huseby R, Bhavsar J

    Published in Applied Psychophysiology and Biofeedback

    Methodology

    Meta-analysis of controlled trials of heart rate variability biofeedback measuring vagally mediated HRV indices and stress outcomes.

    Key Findings

    Biofeedback significantly increased vagally mediated heart rate variability and reduced self-reported stress and anxiety.

    Conclusions

    Direct vagal training reliably raises parasympathetic tone.

    Limitations

    Blinding difficult; heterogeneous protocols.

    Outcomes Measured

    Parasympathetic Activation
    Primary

    Biofeedback significantly increased vagally mediated heart rate variability and reduced self-reported stress and anxiety

    Heart Rate Variability

    Biofeedback significantly increased vagally mediated heart rate variability and reduced self-reported stress and anxiety.

    Related Health Concerns

    Anxiety

    Study Details

    Year:2020
    Duration:8 weeks
    Quality Score:7/10

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