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 Concept Videos

Factors Influencing Heart Rate01:30

Factors Influencing Heart Rate

7.3K
The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
7.3K
Regulation of Heart Rates01:31

Regulation of Heart Rates

4.5K
The regulation of heart rate is a complex process controlled by the autonomic nervous system (ANS), hormonal influences, and intrinsic cardiac mechanisms. The ANS has two main components: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).
The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...
4.5K
Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

14.6K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
14.6K
Electrocardiogram01:29

Electrocardiogram

7.6K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
7.6K
Pulse rhythm01:30

Pulse rhythm

1.6K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.6K
Cardiac Output I:Effect of Heart Rate on Cardiac Output01:19

Cardiac Output I:Effect of Heart Rate on Cardiac Output

3.3K
Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
3.3K

You might also read

Related Articles

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

Sort by
Same author

Medium chain fatty acid sensing receptor GPR84 limits antitumor immunity mediated by CD4 T cells in mice.

ImmunoHorizons·2026
Same author

The 2026 global roadmap for textile-integrated wearable technologies in health.

Physiological measurement·2026
Same author

CD39 mRNA therapy attenuates localized acute inflammation: A novel anti-inflammatory strategy using cationic nanoliposomes.

Molecular therapy. Nucleic acids·2026
Same author

Interpretable graph-based models on multimodal biomedical data integration: a technical review and benchmarking.

Nature communications·2026
Same author

Enhancing Brain Signal Generation Through A Hybrid Approach Integrating Reinforcement Learning And Diffusion Models.

IEEE transactions on medical imaging·2026
Same author

Diurnal and sex-specific renal responses to vasopressin receptor 2 agonism and antagonism in mice.

American journal of physiology. Renal physiology·2026

Related Experiment Video

Updated: Mar 27, 2026

Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
04:45

Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice

Published on: May 5, 2022

3.1K

Heart rate regulation during cycle-ergometer exercise via bio-feedback.

Ahmadreza Argha, Steven W Su, Hung Nguyen

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |January 7, 2016
    PubMed
    Summary

    This study introduces an event-driven control system to precisely regulate heart rate (HR) during exercise. This novel approach enhances user engagement by delivering biofeedback only when optimal for force exertion.

    More Related Videos

    Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects
    06:57

    Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects

    Published on: February 12, 2021

    3.8K
    A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
    04:24

    A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program

    Published on: April 19, 2019

    12.9K

    Related Experiment Videos

    Last Updated: Mar 27, 2026

    Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
    04:45

    Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice

    Published on: May 5, 2022

    3.1K
    Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects
    06:57

    Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects

    Published on: February 12, 2021

    3.8K
    A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
    04:24

    A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program

    Published on: April 19, 2019

    12.9K

    Area of Science:

    • Biomedical Engineering
    • Control Systems
    • Exercise Physiology

    Background:

    • Conventional proportional, integral, and derivative (PID) controllers may disengage users if feedback is not timely.
    • Auditory biofeedback for heart rate (HR) regulation requires precise timing for effective user implementation.

    Purpose of the Study:

    • To develop and explain a novel actuator-based event-driven control system for HR regulation.
    • To improve user engagement in closed-loop exercise control systems.

    Main Methods:

    • Designed a non-model-based, actuator-based event-driven controller.
    • Integrated auditory biofeedback commands into the control loop.
    • Triggered feedback based on pedal position for efficient force exertion.

    Main Results:

    • The developed system precisely regulates HR to a predetermined profile.
    • The event-driven approach mitigates cognitive disengagement by optimizing feedback timing.

    Conclusions:

    • The novel event-driven controller enables accurate HR tracking during exercise.
    • This system enhances the efficacy of biofeedback in exercise control.