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

2.7K
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,...
2.7K
Regulation of Heart Rates01:31

Regulation of Heart Rates

1.9K
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...
1.9K
Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

852
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...
852
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

9
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
9
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

20
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
20
Cardiac Output I:Effect of Heart Rate on Cardiac Output01:19

Cardiac Output I:Effect of Heart Rate on Cardiac Output

847
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...
847

You might also read

Related Articles

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

Sort by
Same author

Depot-Specific Cardiorenal Adipose Remodeling with SGLT2i in Chronic Kidney Disease.

Journal of clinical medicine·2026
Same author

Chamber-Specific Structural, Fibrotic, and Molecular Remodeling of the Heart in Experimental Metabolic Syndrome.

International journal of molecular sciences·2026
Same author

Validity and Reliability of a Laser Pointer Device to Assess Knee Proprioception in Healthy and Active Individuals.

Physiotherapy research international : the journal for researchers and clinicians in physical therapy·2026
Same author

Implementation of an Intervention Program Based on Virtual Walking and Therapeutic Exercise in Cuba: A Feasibility Study.

Healthcare (Basel, Switzerland)·2026
Same author

Effect of virtual walking on chronic pain, tone and spasticity in incomplete spinal cord injury.

Disability and rehabilitation·2025
Same author

Differential contribution of T-type voltage-gated calcium channels to vascular reactivity in the aorta and renal artery of healthy rabbits.

Experimental physiology·2025
Same journal

Evidence-Based Clinical Recommendations for the Appropriate Use of Diagnostic Tests in Pediatric Allergology: Focus on Asthma, Rhinoconjunctivitis, and Keratoconjunctivitis Vernal.

Journal of clinical medicine·2026
Same journal

Surgical and Transcatheter Approach of a Failed Mitral Valve Repair: A Comprehensive Review on Selecting the Most Suitable Approach.

Journal of clinical medicine·2026
Same journal

Hybrid Metaheuristic Feature Selection for Breast Cancer Detection in Digital Mammography: A Feasibility Study with Nested Validation, Benchmarking, and External Stress Testing.

Journal of clinical medicine·2026
Same journal

Identity Transformation and the Role of Accountability in Recovery from Problematic Pornography Use: A Phenomenological-Hermeneutical Study.

Journal of clinical medicine·2026
Same journal

Does Early Surgical Treatment in Degenerative Cervical Myelopathy Have a Favorable Clinical Outcome and Impact on Quality of Life?

Journal of clinical medicine·2026
Same journal

Shear Wave Elastography in Musculoskeletal Imaging: A Narrative Review.

Journal of clinical medicine·2026
See all related articles

Related Experiment Video

Updated: Jul 15, 2025

Author Spotlight: Assessing the Cardiovascular Profile of Patients with Metabolic Syndrome
06:04

Author Spotlight: Assessing the Cardiovascular Profile of Patients with Metabolic Syndrome

Published on: September 27, 2024

934

Short-Term Heart Rate Variability in Metabolic Syndrome: A Systematic Review and Meta-Analysis.

Johan E Ortiz-Guzmán1, Sara Mollà-Casanova2,3, Pilar Serra-Añó2,3

  • 1Department of Physiology, Universitat de València, Av. Blasco Ibáñez 15, 46010 Valencia, Spain.

Journal of Clinical Medicine
|September 28, 2023
PubMed
Summary
This summary is machine-generated.

Patients with metabolic syndrome (MS) exhibit altered short-term heart rate variability (HRV), showing reduced time-domain measures like SDNN and rMSSD. Frequency-domain analyses also revealed lower HF and LF, with sex-specific differences observed.

Keywords:
cardiac autonomic dysfunctionheart rate variabilitymetabolic syndromeshort-term recording

More Related Videos

Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle
09:40

Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle

Published on: January 19, 2017

11.8K
Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
08:12

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions

Published on: June 5, 2019

19.9K

Related Experiment Videos

Last Updated: Jul 15, 2025

Author Spotlight: Assessing the Cardiovascular Profile of Patients with Metabolic Syndrome
06:04

Author Spotlight: Assessing the Cardiovascular Profile of Patients with Metabolic Syndrome

Published on: September 27, 2024

934
Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle
09:40

Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle

Published on: January 19, 2017

11.8K
Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
08:12

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions

Published on: June 5, 2019

19.9K

Area of Science:

  • Cardiology
  • Metabolic Disorders
  • Physiology

Background:

  • Metabolic syndrome (MS) is a cluster of conditions increasing cardiovascular risk.
  • Heart rate variability (HRV) reflects autonomic nervous system function and is a potential biomarker for MS.
  • Understanding HRV differences in MS is crucial for risk stratification and management.

Purpose of the Study:

  • To systematically review and meta-analyze short-term HRV in patients with MS compared to healthy controls.
  • To investigate potential sex-specific differences in HRV associated with MS.

Main Methods:

  • Systematic review and meta-analysis (MA) of studies with short-term HRV recordings (≤30 min).
  • Search of electronic databases for comparative studies (MS vs. healthy controls).
  • Adherence to PRISMA guidelines and PROSPERO registration (CRD42022358975).

Main Results:

  • Nineteen studies met MA criteria; 28 for qualitative synthesis.
  • MS patients showed significantly decreased SDNN, rMSSD, HF, and LF.
  • Subanalyses revealed sex-specific patterns: women had lower SDNN, rMSSD, and HF; men had lower LF. MA for non-linear variables was not possible.

Conclusions:

  • Metabolic syndrome is associated with significant alterations in short-term HRV, particularly in time-domain (SDNN, rMSSD) and frequency-domain (HF, LF) measures.
  • Sex-specific analyses suggest a differential impact of MS on HRV between men and women, highlighting the need for sex-stratified approaches.
  • These findings underscore HRV as a valuable indicator of autonomic dysfunction in MS.