EZ-AIR

E-Z Air is a software program that prompts a person to inhale and exhale at a pre-determined rate. First you set the pacer at the number of breaths per minute you want to test. It is suggested that you start at 6 breaths per minute and work your way down to 4 BPM in .5 BPM steps. – 6.0, 5.5, 5.0, 4.5, and 4.0. Have the client/subject practice breathing at the selected rate by following the pacer for 2 minutes without recording HRV data. Start recording HRV data once the client/subject is comfortable breathing at the selected rate. Stop the recording after 2 minutes. Save the data. Let the client/subject rest and breath normally for a few minutes.

Set the pacer to the next number of breaths per minute. Have the client/subject practice breathing at that rate and repeat the process. Go through this process for each breathing rate. You should now have HRV data recorded for each breathing rate.

Inspect the spectral graphic report for each recording. Identify the highest low frequency spectral peak. This should appear as a high amplitude peak towards the left side of the graph somewhere around .1 Hz. It may be slightly higher or lower than .1 Hz. There should not be other peaks anywhere near the same amplitude as the highest peak for the breathing rate that is the resonance frequency. You need to be able to quantify the amplitude of the peak so that you can compare the different recordings at the varied breathing rates. On the Heartmath Freeze Framer or EmWave-PC software you should click on the View HRV Power Spectrum button. Look at the graph on the bottom of the screen. The amplitude is represented in msec.²/Hz. Check the amplitude for each data recording. The one that shows the highest amplitude is the resonance frequency. This is the breathing rate that is suggested for training for the individual client/subject.

The screen and amplitude units will be different on other software. Dr. Lehrer has created a special application for HRV that works on the Procomp Biograph Infiniti Software. You should now begin to train the client/subject to breathe at the resonance frequency using a watch or clock with a second hand or with the E-Z Air or other pacer. You should train them to do this in the office and then have them practice it at home regularly. The client/subject should practice reaching maximum HRV amplitude without the breath pacer using only the HRV feedback by the third office session. The office training process should be completed at the end of four sessions. The client/subject should continue to practice at home regularly.

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