Influencing Cardiovascular Outcomes through Heart Rate Variability Modulation: A Systematic Review.

Diagnostics (Basel) · 2021 · PMC8700170 · PMID 34943435

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did not reach statistical significanceno p-value reported

Although patients in the HRV-biofeedback group tended to have a lower rate of cardiac emergency visits than patients from the control group (respectively, 4.00% and 5.08%), it did not reach statistical significance.

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