EKC during a stress test; noise filtering

AI Thread Summary
Muscle noise significantly interferes with EKG readings during stress tests, as even minor movements can obscure the heart's waveform. Filtering out this noise is challenging because it shares similar characteristics with the heart's signals. Effective noise filtering techniques are essential to preserve the integrity of the heart data while minimizing disruptions. The discussion highlights the need for advanced methods to distinguish between muscle noise and useful cardiac information. Addressing this issue is crucial for accurate heart monitoring during vigorous exercise.
fedaykin
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Muscle noise is a big problem with our EKG machines at work. Even the slightest movement will overwhelm the waveform being studied; however, EKGs are done during stress tests which involve quite a bit of vigorous exercise. Muscle noise has a different waveform, but it's basically the same thing being measured.

How is it filtered without disrupting the useful information about the heart?
 
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This may be of some interest.
http://www.urel.feec.vutbr.cz/ra2008/archive/ra2004/abstracts/105.pdf."
 
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