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

Acid-Base Balance01:25

Acid-Base Balance

2.3K
The human body maintains a narrow pH range regulated through acid-base balance. This balance is crucial as changes in the hydrogen ion concentration can disrupt cell membrane stability, alter protein structures, and change enzyme activities. The normal pH of arterial blood is 7.4, venous blood and interstitial fluid is 7.35, and intracellular fluid averages 7.0.
When the pH of arterial blood rises above 7.45, it results in a condition called alkalosis. Conversely, a drop below 7.35 leads to...
2.3K
Disorders of Acid-Base Balance01:29

Disorders of Acid-Base Balance

1.9K
The human body maintains a precise pH range of arterial blood between 7.35 and 7.45. Deviations result in either acidosis (pH < 7.35) or alkalosis (pH > 7.45). These conditions are further classified as respiratory or metabolic disorders based on their underlying cause.
Respiratory Acidosis and Alkalosis
Respiratory acidosis occurs due to an increase in the partial pressure of carbon dioxide PCO2 in the blood. It often arises from shallow breathing or impaired gas exchange caused by...
1.9K
Respiratory Regulation of Acid-Base Balance01:18

Respiratory Regulation of Acid-Base Balance

1.7K
Respiratory compensation is a vital physiological process that stabilizes blood plasma pH by regulating the partial pressure of carbon dioxide (PCO2), a key determinant of pH levels. Most carbon dioxide in the blood dissolves and converts into carbonic acid (H2CO3). It dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3⁻). There is also an inverse relationship between PCO2​​ and pH.
When carbon dioxide levels increase in the blood, more H+ and HCO3⁻ are...
1.7K
Renal Regulation of Acid-Base Balance01:29

Renal Regulation of Acid-Base Balance

1.6K
Metabolic reactions in the body produce nonvolatile acids, such as sulfuric acid, which generate an acid load of approximately 1 mEq of H+ per kilogram of body weight daily. Excreting H+ in the urine is essential to balance this acid load.
In the kidneys, cells within the proximal convoluted tubules (PCT) and the collecting ducts secrete hydrogen ions (H+) into the tubular fluid. Specifically, in the PCT, Na+/H+ antiporters secrete H+ while reabsorbing Na+.
However, the intercalated cells in...
1.6K
Lung Capacity01:47

Lung Capacity

56.2K
The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
56.2K
Balancing Redox Equations02:58

Balancing Redox Equations

61.7K
Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
61.7K

You might also read

Related Articles

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

Sort by
Same author

Solar-Driven Reversible Hydrogen Storage Over LiNH<sub>2</sub>-2LiH.

Angewandte Chemie (International ed. in English)·2026
Same author

Pathophysiological Mechanisms and Therapeutic Targets in Cerebral Small Vessel Disease: A Comprehensive Review.

Current neuropharmacology·2026
Same author

Glycogen Synthase Kinase-3β Inhibition Ameliorates Synaptic and Mitochondrial Dysfunction in a Sporadic Alzheimer's Disease-Like Model.

Molecular neurobiology·2026
Same author

A shared-control ultrasound-guided robotic system for liver puncture under respiratory motion.

Scientific reports·2026
Same author

Study on the effects of different fermentation methods on fermented mustard microbial community composition and metabolite profile.

Food chemistry: X·2026
Same author

Acute glycemic variability and short-term mortality of patients with subarachnoid hemorrhage: a meta-analysis.

Frontiers in neurology·2026

Related Experiment Video

Updated: Jan 23, 2026

Two-photon Calcium Imaging in Mice Navigating a Virtual Reality Environment
08:12

Two-photon Calcium Imaging in Mice Navigating a Virtual Reality Environment

Published on: February 20, 2014

32.1K

Classification for Human Balance Capacity Based on Visual Stimulation under a Virtual Reality Environment.

Haiyan Jin1,2, Le Xie3, Zhaolin Xiao4

  • 1Department of Computer Science and Engineering, Xi'an University of Technology, Xi'an 710048, China. jinhaiyan@xaut.edu.cn.

Sensors (Basel, Switzerland)
|June 21, 2019
PubMed
Summary

This study introduces a novel multi-barycentric area model (MBAM) for classifying human balance ability using video analysis. The MBAM method accurately categorizes balance, aiding rehabilitation training for individuals with balance dysfunctions.

Keywords:
balance ability classificationmulti-barycentric area modelvideo analysisvirtual reality

More Related Videos

Multifunctional Setup for Studying Human Motor Control Using Transcranial Magnetic Stimulation, Electromyography, Motion Capture, and Virtual Reality
08:09

Multifunctional Setup for Studying Human Motor Control Using Transcranial Magnetic Stimulation, Electromyography, Motion Capture, and Virtual Reality

Published on: September 3, 2015

11.5K
Human Fear Conditioning Conducted in Full Immersion 3-Dimensional Virtual Reality
10:38

Human Fear Conditioning Conducted in Full Immersion 3-Dimensional Virtual Reality

Published on: August 9, 2010

21.5K

Related Experiment Videos

Last Updated: Jan 23, 2026

Two-photon Calcium Imaging in Mice Navigating a Virtual Reality Environment
08:12

Two-photon Calcium Imaging in Mice Navigating a Virtual Reality Environment

Published on: February 20, 2014

32.1K
Multifunctional Setup for Studying Human Motor Control Using Transcranial Magnetic Stimulation, Electromyography, Motion Capture, and Virtual Reality
08:09

Multifunctional Setup for Studying Human Motor Control Using Transcranial Magnetic Stimulation, Electromyography, Motion Capture, and Virtual Reality

Published on: September 3, 2015

11.5K
Human Fear Conditioning Conducted in Full Immersion 3-Dimensional Virtual Reality
10:38

Human Fear Conditioning Conducted in Full Immersion 3-Dimensional Virtual Reality

Published on: August 9, 2010

21.5K

Area of Science:

  • Biomechanics
  • Rehabilitation Engineering
  • Computer Vision

Background:

  • Accurate classification of human balance ability is crucial for effective rehabilitation.
  • Existing methods may lack precision in dynamic balance assessment.

Purpose of the Study:

  • To propose and validate a novel Multi-Barycentric Area Model (MBAM) for classifying human balance ability.
  • To enhance the accuracy of video-based balance assessment for rehabilitation purposes.

Main Methods:

  • Collected motion behavior data from 53 subjects using HTC VIVE virtual reality.
  • Applied background differential and bilateral filtering for video preprocessing.
  • Developed the MBAM by calculating the center of gravity of a triangular body area.

Main Results:

  • The MBAM model demonstrated accurate classification of human balance ability.
  • Analysis using MBAM, area variance, roadmap, and walking speed validated the method's effectiveness.
  • The proposed method achieved higher accuracy in balance ability classification compared to existing approaches.

Conclusions:

  • The MBAM offers a robust method for objective balance ability classification.
  • This research provides potential theoretical support for diagnosing and treating balance dysfunction.
  • The MBAM can improve the precision of video analysis in rehabilitation settings.