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L07 ECG & Pulse

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Mechanical Action of the Heart, Peripheral Pressure Pulse, Plethysmography
This BSL lesson examines the mechanical action of the heart and peripheral pulse pressure. The lesson demonstrates how the heart pumps the blood throughout the body using a pulse plethysmogram transducer and Lead II ECG. The students will record their data while performing a number of different tasks. They will analyze the data and determine the speed of their own pressure pulse wave under different conditions.

Experimental Objectives

  1. To become familiar with the principle of plethysmography and its usefulness in qualitatively assessing peripheral changes in blood volume.
  2. To observe and record changes in peripheral blood volume and pressure pulse under a variety of both experimental and physiological conditions.
  3. To determine the approximate speed of the pressure pulse wave traveling between the heart and the finger.
  4. To illustrate the electrical activity associated with normal cardiac activity and how it relates to the flow of blood throughout the body.

Tasks Performed by the Student

BSL Lessons are designed to allow at least four students to record and save data in a normal lab period (60-90 minutes). Typically, labs work most efficiently with three or more students working together at each BSL station.

Videos

BSL L07 Calibration

Biopac Student Lab Student Download

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.

Item Name Cart
SS2LB Lead set, shielded, BSL Add to Cart
SS4LA Photoplethysmogram for Pulse Waveform - MP3X/45 Add to Cart
GEL1 Electrode gel 50 g Add to Cart
EL503 Disp. Gen-purp electrode 100/pk Add to Cart
ELPAD Abrasive Pads 10/pk Add to Cart
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fNIRS Data Analysis

In this fNIRS training, you will see a typical analysis workflow for fNIRS data in experiments featuring both event-based and continuous stimulation. Learn about a powerful yet easy-to-use software package with both a graphical user interface and scripting capability (for automation).

What You Will Learn:
• Preparing data for analysis
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• Block analysis using event markers and/or time
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• Performing common statistical comparisons (t-test, ANOVA)
• Spatial visualization
LIVE Webinar Aug 25th 8am PT/11am ET

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