The video explains correct (abdominal) breathing and the correct positioning of the iPhone during a measurement with a chest strap (e.g. Polar H10). Phone upside down in the waistband with the display facing outwards. During the paced breathing sections let the phone move only from your belly. https://breathtuner.app/wp-content/uploads/2022/10/TwoBreathHrm.mp4
Videoinstructions – camera
The video explains correct (abdominal) breathing and correct positioning of the iPhone during a measurement with the camera. During the paced breathing sections let the phone move only from your belly. In the pauses in between, the finger may be taken off the camera. https://breathtuner.app/wp-content/uploads/2022/10/TwoBreathCam.mp4
Coherence analysis
As of version 1.3.1 there is a new coherence analysis in BreathTuner. It displays a direct visual comparison between your breathing curve and your heart rate curve. For each breathing rate in a measurement or globally over all your measurements (different analysis pages) the two curves (breathing and heart rate) are displayed superimposed in time. […]