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

Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

957
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
957
Pulse rhythm01:30

Pulse rhythm

783
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...
783
Special considerations while measuring pulse01:13

Special considerations while measuring pulse

578
Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
578
Instrumentation Amplifier01:25

Instrumentation Amplifier

500
An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
500
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

909
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
909
Special considerations while measuring blood pressure01:28

Special considerations while measuring blood pressure

717
When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
717

You might also read

Related Articles

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

Sort by
Same author

Pressure-Regulated Chondrogenesis of BMSCs: Static Negative Pressure Primes Differentiation through Apoptotic Vesicles.

Tissue engineering and regenerative medicine·2026
Same author

The anion channel SLAH3 regulates flowering time in Arabidopsis thaliana.

Biochemical and biophysical research communications·2026
Same author

<i>In situ</i> construction of ZnP<sub>2</sub>/CuP<sub>2</sub> heterojunction for efficient nitrate-to-ammonia electroreduction.

Chemical communications (Cambridge, England)·2026
Same author

Lipid Interference Flagging and Haemoglobin Correction in Lipemic Samples With a Hematology Analyzer.

Journal of clinical laboratory analysis·2026
Same author

GPR30-mediated NETs degradation via Trex1 in heart failure of aged female mice.

Journal of translational medicine·2026
Same author

An Engineered Nano-Vesicle Adjuvant Platform (ENAP) for Cytokine Delivery Enables a Novel Antigen-Coordinated Vaccine Against Helicobacter pylori.

Journal of extracellular vesicles·2026

Related Experiment Video

Updated: Jun 23, 2025

Impedance Pneumography for Minimally Invasive Measurement of Heart Rate in Late Stage Invertebrates
08:25

Impedance Pneumography for Minimally Invasive Measurement of Heart Rate in Late Stage Invertebrates

Published on: April 4, 2020

6.0K

Light and Displacement Compensation-Based iPPG for Heart-Rate Measurement in Complex Detection Conditions.

Shubo Bi1,2, Haipeng Wang1, Shuaishuai Zhang2

  • 1School of Intelligent Manufacturing, Jiangsu College of Engineering and Technology, Nantong 226006, China.

Sensors (Basel, Switzerland)
|June 19, 2024
PubMed
Summary

This study introduces a new algorithm for photoplethysmography (PPG) to accurately measure heart rate, even in challenging conditions. The enhanced iPPG method improves accuracy by compensating for ambient light and subject motion.

Keywords:
displacement compensationheart-rate measurementiPPGlight compensation

More Related Videos

Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
08:22

Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis

Published on: April 26, 2024

1.8K
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

19.8K

Related Experiment Videos

Last Updated: Jun 23, 2025

Impedance Pneumography for Minimally Invasive Measurement of Heart Rate in Late Stage Invertebrates
08:25

Impedance Pneumography for Minimally Invasive Measurement of Heart Rate in Late Stage Invertebrates

Published on: April 4, 2020

6.0K
Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
08:22

Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis

Published on: April 26, 2024

1.8K
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

19.8K

Area of Science:

  • Biomedical Engineering
  • Signal Processing
  • Wearable Technology

Background:

  • Photoplethysmography (iPPG) is a non-invasive technique for heart rate monitoring.
  • Conventional iPPG algorithms struggle with accuracy due to environmental factors like ambient light and subject motion.
  • Accurate heart rate measurement is crucial for various health and fitness applications.

Purpose of the Study:

  • To develop an improved iPPG algorithm for robust heart rate measurement under complex detection conditions.
  • To enhance the accuracy and reliability of iPPG by addressing deviations caused by ambient light and motion.
  • To validate the proposed algorithm's effectiveness through experimental measurements.

Main Methods:

  • A novel iPPG algorithm integrating light and displacement compensation sub-algorithms.
  • Light compensation using a mean filter-based light adjustment strategy to mitigate ambient light variations.
  • Displacement compensation employing an optical flow-based strategy to counteract motion artifacts.
  • Experimental validation comparing the proposed method against conventional iPPG techniques.

Main Results:

  • The proposed light and displacement-compensation iPPG algorithm demonstrated superior performance.
  • Average measurement accuracy increased by 3.8% across varying detection distances.
  • Average measurement accuracy improved by 5.0% under different light intensities compared to conventional iPPG.
  • The method effectively reduced measurement deviations caused by environmental factors.

Conclusions:

  • The integrated light and displacement compensation strategy significantly enhances iPPG accuracy in complex environments.
  • The proposed algorithm offers a more reliable solution for heart rate monitoring in real-world scenarios.
  • This advancement holds potential for improved non-invasive cardiovascular monitoring devices.