Heart Sound Recorder (HSR)

What is the Heart Sound Recorder?

The Heart Sound Recorder (HSR) is a valuable general wellness heart stress monitor used to acquire, display, record, and save heart sounds. This advanced technology records and displays the low-frequency component of the heart cycle as a waveform on a computer, creating a visual graph of the heart's rate, rhythm, and tone. The HSR enables ongoing assessments, comparisons, and before-and-after analyses, facilitating trending purposes.


Proper nutritional balance is crucial for maintaining the correct rate, rhythm, and tone of your heart.

Our wellness specialists can quickly evaluate these essential factors using the Heart Sound Recorder.


Monitoring heart stress is vital, observing the RATE, RHYTHM, & TONE on the graph.

  • Your nervous system controls the RATE at which your heart beats. One side of your nervous system (sympathetic) manages your "fight or flight" response, possibly accelerating your heart rate, while the other side (parasympathetic) manages your "rest and digest" response, potentially slowing your heart rate. A healthy balance between the two is essential.
  • The RHYTHM of your heart should show a specific work-to-rest ratio on the graph, with your heart resting twice as long as it works. Observations are made to determine if your heart is working too hard or not hard enough.
  • The TONE of your heart refers to the strength of the ventricles as they pump blood through your body. The height and width of the 'lub-dub' sound your heart makes on the graph indicate how efficiently it pushes blood and refills for the next cardiac cycle.
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