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177 – ECG Analysis Using the Offline Averaging Mode

For years, cardiologists examined paper charts of ECG signals to create an averaged ECG complex. They took each individual cardiac cycle, measured each part of the complex with a ruler, wrote down each value, and calculated the means to derive an averaged ECG complex. As you can imagine (or have experienced), this task took a great deal of time and patience. When the need arose to analyze two or more different scenarios (e.g., baseline response), the task had to be performed even more carefully, to accurately comparison of the ECG.

The AcqKnowledge software has a powerful averaging feature that automatically derives an averaged signal from a specific number of cycles (averaging is found in the Peak Detection menu). And, you can easily compare two, three, or more averaged ECG signals with just a few mouse clicks.

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Fundamentals of Physiological Data Recording

Basic principles of physiological data collection covers fundamentals of data collection and equipment configuration equipment to help you refine experiment protocols and avoid costly missteps. Frazer Findlay, CEO of BIOPAC, discusses common mistakes with physiology recording and shares his secrets for collecting great data. Topics include: How to prep a subject and where to place electrodes; Which type of electrodes work for different body signals; Analog to Digital Conversion; Sample rates (correct vs. incorrect); Filtering; and Scaling and calibration.
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