Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Exercise electrocardiographic mapping in normal subjects.

D D McPherson, B M Horacek, D J Sutherland

    Journal of Electrocardiology
    |October 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Clinical outcomes of tumor-agnostic targeting of BRAF, tumor mutation burden-high, and RET.

    ESMO open·2025
    Same author

    Treatment of Prolapsus Uteri.

    Buffalo medical and surgical journal·2023
    Same author

    Delivery of bevacizumab to atheromatous porcine carotid tissue using echogenic liposomes.

    Drug delivery·2016
    Same author

    The photochemical isomerization of dieldrin and endrin and effects on toxicity.

    Bulletin of environmental contamination and toxicology·2013
    Same author

    The nature and toxicity of the photoconversion products of aldrin.

    Bulletin of environmental contamination and toxicology·2013
    Same author

    Low levels of maternal serum PAPP-A in early pregnancy and the risk of adverse outcomes.

    Prenatal diagnosis·2008

    Exercise significantly alters body surface electrocardiograms, particularly ST waveforms, with changes persisting into recovery. These repolarization shifts are crucial for risk assessment in individuals.

    Area of Science:

    • Cardiology
    • Electrophysiology
    • Medical Imaging

    Background:

    • Standard exercise electrocardiograms (ECG) provide limited spatial information.
    • Body Surface Potential Mapping (BSPM) offers a more comprehensive view of cardiac electrical activity.

    Purpose of the Study:

    • To analyze the detailed changes in 120-lead BSPM during and after graded exercise in healthy adults.
    • To understand the impact of physiological stress on cardiac electrical waveforms.

    Main Methods:

    • Recorded 120-lead BSPM in normal adults during upright, graded, submaximal exercise testing.
    • Analyzed changes in QRS and ST waveforms, potential ranges, and integrals.
    • Evaluated spatial and temporal characteristics of ST-segment changes using isointegral maps.

    Related Experiment Videos

    Main Results:

    • Exercise induced significant changes in body surface electrocardiographic waveforms, many persisting into early recovery.
    • QRS duration remained unchanged, but QRS potential range and integral values decreased.
    • ST waveforms showed abbreviated duration and increased slope, leading to increased ST potential range.
    • Isointegral ST-segment maps revealed substantial decreases in precordial and inferior torso values, persisting post-exercise.

    Conclusions:

    • Physiological exercise markedly affects electrocardiographic repolarization parameters.
    • These exercise-induced BSPM changes, especially in ST-segment behavior, are significant and should be considered in clinical risk evaluation.
    • The underlying mechanisms for these observed repolarization changes require further investigation.