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

Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Blood Flow01:29

Blood Flow

Blood is pumped by the heart into the aorta, the largest artery in the body, and then into increasingly smaller arteries, arterioles, and capillaries. The velocity of blood flow decreases with increased cross-sectional blood vessel area. As blood returns to the heart through venules and veins, its velocity increases. The movement of blood is encouraged by smooth muscle in the vessel walls, the movement of skeletal muscle surrounding the vessels, and one-way valves that prevent backflow.
Cardiac Output I:Effect of Heart Rate on Cardiac Output01:19

Cardiac Output I:Effect of Heart Rate on Cardiac Output

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 rate...
Exercise and Cardiac Output01:17

Exercise and Cardiac Output

Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be met...
Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
Pathophysiology of Cardiac Performance01:29

Pathophysiology of Cardiac Performance

Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...

You might also read

Related Articles

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

Sort by
Same author

Dynamic Assessment of Exercise Gas Exchange Efficiency by Breath-by-Breath Volumetric Capnography in Mild-Moderate COPD.

COPD·2026
Same author

When the body speaks: managing somatic symptoms in the paediatric emergency department.

Paediatrics & child health·2026
Same author

Poor Sleep Quality and Heightened Perceptual Responses to Exercise in Community Dwellers: Results from the CanCOLD Study.

Annals of the American Thoracic Society·2026
Same author

Postural relief of dyspnoea is associated with improved neuromechanical coupling in patients with advanced COPD.

The European respiratory journal·2026
Same author

The role of the pulmonary function laboratory in risk assessment for lung resection.

Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia·2026
Same author

The role of the pulmonary function laboratory in the assessment of adults with neuromuscular disease.

Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia·2026

Related Experiment Video

Updated: Jul 19, 2026

Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
09:04

Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy

Published on: February 20, 2018

Muscle blood-flow dynamics at exercise onset: do the limbs differ?

Michael E Tschakovsky1, Natasha R Saunders, Katherine A Webb

  • 1School of Physical and Health Education, Queen's University, Kingston, Ontario, Canada. mt29@post.queensu.ca

Medicine and Science in Sports and Exercise
|October 5, 2006
PubMed
Summary

This review explores how systems-control principles reveal dynamic muscle blood flow regulation during exercise. Understanding these non-steady-state responses offers new insights into physiological control mechanisms.

More Related Videos

Doppler Ultrasound-Based Leg Blood Flow Assessment During Single-Leg Knee-Extensor Exercise in an Uncontrolled Setting
09:18

Doppler Ultrasound-Based Leg Blood Flow Assessment During Single-Leg Knee-Extensor Exercise in an Uncontrolled Setting

Published on: December 15, 2023

Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise
09:33

Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise

Published on: December 19, 2024

Related Experiment Videos

Last Updated: Jul 19, 2026

Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
09:04

Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy

Published on: February 20, 2018

Doppler Ultrasound-Based Leg Blood Flow Assessment During Single-Leg Knee-Extensor Exercise in an Uncontrolled Setting
09:18

Doppler Ultrasound-Based Leg Blood Flow Assessment During Single-Leg Knee-Extensor Exercise in an Uncontrolled Setting

Published on: December 15, 2023

Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise
09:33

Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise

Published on: December 19, 2024

Area of Science:

  • Exercise Physiology
  • Systems Biology
  • Cardiovascular Regulation

Background:

  • Traditional exercise research often focuses on steady-state muscle blood flow.
  • Understanding the dynamic, non-steady-state adaptation of blood flow is crucial for a complete picture of physiological responses.
  • Systems-control principles offer a novel framework for analyzing these dynamic changes.

Purpose of the Study:

  • To review methods for measuring and analyzing muscle blood flow dynamics during exercise.
  • To summarize current knowledge on dynamic muscle blood flow control mechanisms in humans.
  • To compare blood flow control in the upper versus lower limbs during exercise.

Main Methods:

  • Review of exercise models and muscle blood flow measurement techniques.
  • Analysis of dynamic systems-control principles applied to physiological data.
  • Comparative analysis of upper and lower limb exercise responses.

Main Results:

  • Systems-control principles provide a quantitative method for assessing non-steady-state muscle blood flow adaptation.
  • Current understanding of dynamic control mechanisms in human exercise is evolving.
  • Distinct patterns of muscle blood flow control exist between upper and lower limb exercise.

Conclusions:

  • Applying systems-control principles enhances our understanding of muscle blood flow regulation during exercise onset.
  • Dynamic analysis reveals novel insights into the physiological control of exercise responses.
  • Further research comparing upper and lower limb vascular control during exercise is warranted.