HRV Biofeedback requires to breathe at low frequencies (deep breathing), which stimulates parasympathetic activity. Experimental studies have found the highest amplitudes in instantaneous heart rate oscillations when breathing at approximately 0.1 Hz. This means 6 breaths per minute and is the default in the app
However, the frequency at which amplitude is maximal for a person can be slightly different. This is what is called the resonant frequency and can vary by up to 2 breath/minute between people Your resonant frequency can be established with a protocol that consists of breathing at different frequencies for a few minutes until the frequency that elicits the maximal amplitude is found You can do so in the HRV4Biofeedback app, from the Breathing menu. The test will last 6 minutes and works as follows:
While the resonant frequency test should find the optimal breathing frequency for you, you might feel more at ease with a slightly different breathing rate. Feel free to always change the breathing rate using the slider in the Breathing page, the app will use your configuration for the following sessions Comments are closed.
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