When doing a Biofeedback session, a few numbers and signals are shown on screen. Here you'll find a description and a few videos that should clarify any doubts you might have
The measurement screen shows the following:
In the videos below, you can see the first few seconds of the measurement, when you should try to follow the breathing pattern, and just make sure the PPG data looks good, a nice and smooth waveform as shown in these videos. In the second video, you can also see that the heart rate graph shows up, with oscillations reflecting deep breathing, with heart rate increasing when breathing in, and decreasing when breathing out.
WHAT SHOULD I FOCUS ON DURING THE PRACTICE?
Our health and performance can be affected by how we are able to effectively cope with stressful situations and deal with anxiety, or in broader terms, our ability to emotionally self-regulate is key
The goal of HRV Biofeedback is to improve self-regulation, therefore impacting positively our health and performance
Practically speaking, HRV Biofeedback consists of providing an individual with real-time feedback on instantaneous heart rate and respiration changes while being instructed to breathe at low frequencies. This is what you see in the app, and thus the only thing to focus on is deep breathing
Pretty simple, right?