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

Standing Waves01:17

Standing Waves

5.4K
Sometimes waves do not seem to move; rather, they just vibrate in place. Unmoving waves can be seen on the surface of a glass of milk kept in a refrigerator, which is one example of standing waves. Vibrations from the refrigerator motor create waves on the milk that oscillate up and down but do not seem to move across the surface. These waves are formed or created by the superposition of two or more identical moving waves in opposite directions. The waves move through each other, with their...
5.4K
Modes of Standing Waves - I01:03

Modes of Standing Waves - I

4.0K
A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This...
4.0K
Modes of Standing Waves: II01:04

Modes of Standing Waves: II

1.7K
The starting point for expressing the modes of standing waves is understanding the boundary conditions that the waves must follow. The boundary conditions are derived from the physical understanding of how the standing waves are sustained, that is, how the vibrating particles of the medium behave at the boundaries imposed on them.
For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end....
1.7K
Standing Waves in a Cavity01:28

Standing Waves in a Cavity

1.5K
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
1.5K
Standing Electromagnetic Waves01:15

Standing Electromagnetic Waves

2.3K
Electromagnetic waves can be reflected; the surface of a conductor or a dielectric can act as a reflector. As electric and magnetic fields obey the superposition principle, so do electromagnetic waves. The superposition of an incident wave and a reflected electromagnetic wave produces a standing wave analogous to the standing waves created on a stretched string.
Suppose a sheet of a perfect conductor is placed in the yz-plane, and a linearly polarized electromagnetic wave traveling in the...
2.3K
What are Estimates?01:06

What are Estimates?

8.8K
It isn't easy to measure a parameter such as the mean height or the mean weight of a population. So, we draw samples from the population and calculate the mean height or mean weight of the individuals in the sample. This sample data acts as a representative measure of the population parameter. These sample statistics are known as estimates. 
The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such...
8.8K

You might also read

Related Articles

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

Sort by
Same author

Predicting pain location from resting-state brain fMRI.

bioRxiv : the preprint server for biology·2026
Same author

Large language models for automated and audience-tailored labeling of latent classes.

JAMIA open·2026
Same author

Butuanimides, Fatty Acid Synthesis-Inhibiting Antibiotics from Symbiotic Bacteria.

ACS chemical biology·2026
Same author

A Decade of Leadership and Impact: Celebrating 10 Years of the ORS Spine Section.

JOR spine·2026
Same author

Automated Annotation of Pain Chronicity in Patients With Back Pain by Using Electronic Health Records: Retrospective Study.

JMIR formative research·2026
Same author

Comparing Movement Patterns and Physical Function Between Chronic Low Back Pain Patients With Nociplastic and Nociceptive Pain Categories.

JOR spine·2026
Same journal

An Ultra-Lightweight Cross-scale Attention Mamba Network for Accurate Skin Lesion Segmentation.

IEEE journal of biomedical and health informatics·2026
Same journal

Explanation-Guided Reconstruction of Missing Clinical Features for Survival Prediction in Pancreatic Cancer.

IEEE journal of biomedical and health informatics·2026
Same journal

stDGCN: A dual-augmentation graph convolutional network for identifying spatial domains with attention mechanism.

IEEE journal of biomedical and health informatics·2026
Same journal

Patient-specific Biomechanical Investigation of Percutaneous Pulmonary Valves: Towards the Integration of Routinely Acquired Clinical Data and Fluid-structure Interaction Simulations.

IEEE journal of biomedical and health informatics·2026
Same journal

Cross-subject fMRI-to-Image with Visual-cortex 2D Representation and Pre-Training.

IEEE journal of biomedical and health informatics·2026
Same journal

PGCASurv: A Prior-Guided Cross-Attention Framework for Dynamic Survival Model with Longitudinal Data.

IEEE journal of biomedical and health informatics·2026
See all related articles

Related Experiment Video

Updated: Jan 29, 2026

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
08:24

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Published on: August 30, 2016

10.7K

Estimating Sit-to-Stand Dynamics Using a Single Depth Camera.

Robert Peter Matthew, Sarah Seko, Jeannie Bailey

    IEEE Journal of Biomedical and Health Informatics
    |February 5, 2019
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a new method using a single depth camera to assess human movement dynamics, like joint torques. This approach offers a feasible way for rapid clinical assessments of patient recovery and diagnostics.

    More Related Videos

    Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands
    09:04

    Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

    Published on: August 29, 2019

    14.1K
    Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study
    08:40

    Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study

    Published on: November 11, 2022

    1.5K

    Related Experiment Videos

    Last Updated: Jan 29, 2026

    Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
    08:24

    Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

    Published on: August 30, 2016

    10.7K
    Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands
    09:04

    Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

    Published on: August 29, 2019

    14.1K
    Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study
    08:40

    Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study

    Published on: November 11, 2022

    1.5K

    Area of Science:

    • Biomechanics
    • Human Motion Analysis
    • Clinical Assessment

    Background:

    • Quantitative human motion analysis offers functional insights beyond static imaging or surveys.
    • Clinical application of advanced biomechanics is hindered by specialized equipment and expertise requirements.

    Purpose of the Study:

    • To present and validate a novel method for estimating dynamic biomechanical effects using a single depth camera.
    • To assess the clinical feasibility of this method for diagnostics and patient recovery tracking.

    Main Methods:

    • Utilized an allometrically scaled, sagittal plane dynamic model to estimate joint torques (ankles, knees, hips, low back) and torso momenta.
    • Calculated L5-S1 disk shear and normal loads during sit-to-stand motion.
    • Validated the method against a gold-standard system with full-body motion capture and force sensing.

    Main Results:

    • The proposed single-depth-camera method demonstrated excellent concordance with peak metrics from the gold-standard system.
    • Estimated dynamic metrics aligned with findings from previous biomechanical studies.

    Conclusions:

    • The developed method is feasible for rapid clinical assessment of human movement dynamics.
    • Potential applications include diagnostics, longitudinal patient tracking, and quantifying recovery progress.