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I notice that the sensor can “pick up” the Valsalva Wave correctly without picking up the pulse rate and therefore the heart rate. Why is this?

April 26, 2017correctly heart Notice picking pulse rate sensor valsalva wave

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I notice that the sensor can “pick up” the Valsalva Wave correctly without picking up the pulse rate and therefore the heart rate. Why is this?

1 Answer

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The Valsalva Wave phenomenon is “larger”, slower, and more easily detected that the heart beat. For this reason, depending on sensor coupling to the body, the Valsalva Wave may be picke up when the heart rate is not.