BIOPAC® Systems, Inc. Logo

H23 Signal Averaging ECG

The Biopac Student Lab system can be used to amplify and enhance the ECG signal using a clinical diagnosis tool referred to as the Signal Averaged ECG. The technique allows identification of small electrical currents, called ventricular (ven-TRIK’u-ler) late potentials. This test is used to help identify people at risk of a dangerous rhythm in the heart’s lower (pumping) chambers. This is called ventricular arrhythmia (ah-RITH’me-ah) and it can lead to sudden cardiac death.

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. This task took a great deal of time and patience. When the need arose to analyze two or more different scenarios (e.g., baselineresponse), the task had to be performed even more carefully for accurate comparison of the ECGs.

The BSL PRO software has a powerful averaging feature that automatically derives an averaged signal from a specific number of cycles (averaging is found in the Find Peak dialogue). It also can easily compare two, three, or more averaged ECG signals.

Experimental Objectives

  1. Optional: Record multiple segments of ECG data under different conditions.
  2. Provide a Signal Averaged ECG for each of the recording segments.
  3. Compare the Signal Averaged ECG data for different conditions.

Tasks Performed by the Student

Subject will:

Videos

Biopac Student Lab Student Download

Student Prep & Distance Learning

Click the link(s) below for sample data and/or lesson procedure video(s), BSL PRO Lesson procedures (PDF) for human lessons*, and graph template files (*.gtl) for BSL PRO Lessons. If more than one .gtl is available, download the .gtl with the _suffix to match BSL version and hardware.

Lesson Hardware

This lesson requires a Biopac Student Lab (BSL) System and the following hardware. If your BSL System does not include all hardware items, expand your system by selecting required items below. For more details, review the Lesson: L# BSL Lessons - see the Lab Manual or launch BSL; A# and H# BSL PRO Lessons, click the PDF link above to review full setup, recording, and analysis procedures.

ItemNameCart
ELPADAbrasive Pads 10/pkAdd to Cart
GEL1Electrode gel 50 gAdd to Cart
SS2LBLead set, shielded, BSLAdd to Cart
EL503Disp. Gen-purp electrode 100/pkAdd to Cart
Spotlight On
free BIOPAC webinar

Fundamentals of Electrical Stimulation

Learn the Fundamentals of Electrical Stimulation with BIOPAC experts Tim Cook and David Pollack!

What You Will Learn:
– The differences between types of electrical stimulation
– Use cases for electrical stim
– How to prep subjects and connect them to stimulator safely
– Best practices for safe stimulation
– Live demos of electrical and haptic stimulators

Register Now
Latest News

New Citations | Keeping Students Attentive in an Online Setting & More!

BIOPAC provides software and hardware that allows research teams to record and analyze numerous body signals for physiological experimentation. Here are a few notable studies using BIOPAC equipment for ECG, EDA, and Respiration data. What Keeps Students More Engaged? The question has been brought to the forefront during COVID, what variations of online learning keep students more engaged? […]

Electrocardiography Guide Now Available

BIOPAC’s comprehensive Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines for extracting, […]

Read All
Request a Demonstration
Request a Demonstration