Measurement of heart rate variability via ECG-grade chest strap and resonance frequency training. Rebalancing of the autonomic nervous system through respiratory biofeedback.
Our chest strap, recognized as the gold standard for HRV measurement in real-world conditions, captures R-R intervals with ECG-grade precision. HRV biofeedback uses guided breathing at the individual resonance frequency (4.5-6.5 breaths/min, centered around 0.1 Hz) to stimulate the baroreflex and maximize respiratory sinus arrhythmia, synchronizing heart-lung oscillations.
Lehrer et al. (Frontiers in Neuroscience, 2020) published a practical guide for assessing the resonance frequency. A 2025 study in Scientific Reports (Nature) confirmed 0.1 Hz as the most widespread coherence frequency.
The activation of vagal afferents influences the amygdala, insula and orbitofrontal cortex, improving emotional regulation, autonomic balance (increased SDNN, RMSSD) and reducing cortisol.
Generally safe. Caution in case of severe cardiac arrhythmias. Progressive adjustment for people prone to hyperventilation.
Generally safe. Caution in case of severe cardiac arrhythmias. Progressive adjustment for people prone to hyperventilation.
Generally safe. Caution in case of severe cardiac arrhythmias. Progressive adjustment for people prone to hyperventilation.