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

Elasticity01:12

Elasticity

4.9K
Elasticity is the ability of an object to withstand the effects of distortion and to return to its original size and shape once the forces causing deformation are removed. When an elastic material deforms under the action of an external force, it experiences internal resistance to the deformation. However, if no external force is applied, it returns to its original state.
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
4.9K
Social Foundations of Self II: The Generalized Other01:20

Social Foundations of Self II: The Generalized Other

261
According to George Herbert Mead, as children progress beyond the game stage, they develop a more comprehensive understanding of societal rules and norms. This cognitive and social development enables them to internalize the expectations of the broader community, refining their ability to regulate behavior.Consistent participation in organized activities is crucial in helping children recognize that their actions are not isolated but contribute to a more significant, interconnected group...
261
Physiological Foundation of Stress01:24

Physiological Foundation of Stress

658
Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
658
Theoretical Foundations of Nursing Practice01:30

Theoretical Foundations of Nursing Practice

17.4K
Theories play an essential role in organizing patient care. Theories refer to a proposed or followed belief, policy, or procedure that is the basis for action. Nursing theories are knowledge-based concepts that guide nurses' actions, influence nursing education and practice, and allow nurses to care for their patients.
Theories provide a perspective to assess patients' conditions and organize data and methods. They also assist in analyzing and interpreting information. They represent a...
17.4K
Contact Angle01:13

Contact Angle

19.6K
When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces.
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...
19.6K
Contact-dependent Signaling01:19

Contact-dependent Signaling

47.0K
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
47.0K

You might also read

Related Articles

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

Sort by
Same author

A Simple Minimum-Setup Pipeline for Using Leg-Worn Inertial Sensors to Track Knee Flexion: Validation on 10 Movements.

Sensors (Basel, Switzerland)·2026
Same author

Biology Votes Repair?: Commentary on an article by Keyu Wei, MD, et al.: " Comparative Efficacy of Surgical Versus Nonsurgical Management for Acute Achilles Tendon Rupture in a Novel Mouse Model ".

The Journal of bone and joint surgery. American volume·2026
Same author

A Novel Measurement of Altered Achilles Subtendon Load Sharing 6-12 Months Following Rupture.

Journal of orthopaedic research : official publication of the Orthopaedic Research Society·2026
Same author

Two-week cumulative tendon load estimated from insole sensor contact forces is associated with plantar flexor function in Achilles tendinopathy.

Scientific reports·2026
Same author

Recent Advancements in Orthopaedic Surgery: A Systematic Review of Navigation, Robotics, and Augmented Reality.

Journal of orthopaedic research : official publication of the Orthopaedic Research Society·2026
Same author

Sustained Structural and Functional Deficits in the Porcine Knee Six Months Following Meniscus Destabilization.

Journal of orthopaedic research : official publication of the Orthopaedic Research Society·2026
Same journal

Shear wave velocity of biceps femoris and medial gastrocnemius in different positions and intensities: a cross-sectional study in healthy young males.

Journal of biomechanics·2026
Same journal

Gait event detection using hybrid EMG/IMU systems: effect of SENIAM-constrained sensor placement on lower limb segments.

Journal of biomechanics·2026
Same journal

Relationship between knee adduction moment and knee contact forces during walking and running with modified foot progression angles.

Journal of biomechanics·2026
Same journal

Scaling contact force parameters across body size, limb count, and number of contact spheres.

Journal of biomechanics·2026
Same journal

The extrapolated body center of mass predicts subsequent foot placement choice during dynamic single-leg landings.

Journal of biomechanics·2026
Same journal

Lateral reactive stepping responses differ between individuals with and without transfemoral amputation.

Journal of biomechanics·2026
See all related articles

Related Experiment Video

Updated: Feb 1, 2026

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide
09:52

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide

Published on: January 15, 2017

17.9K

Simulating contact using the elastic foundation algorithm in OpenSim.

Michael W Hast1, Brett G Hanson1, Josh R Baxter2

  • 1Biedermann Lab for Orthopaedic Research, Department of Orthopaedic Surgery, The University of Pennsylvania, Philadelphia, PA 19104, USA.

Journal of Biomechanics
|December 4, 2018
PubMed
Summary
This summary is machine-generated.

This study clarifies the elastic foundation contact model in OpenSim for joint simulations. It provides key parameters for total knee replacement (TKR) implants, improving biomechanical modeling accuracy.

Keywords:
Computational simulationContact forcesTibiofemoral forces

More Related Videos

Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis
08:25

Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis

Published on: September 26, 2022

3.5K
Elastic Staining on Paraffin-embedded Slides of pT3N0M0 Gastric Cancer Tissue
06:36

Elastic Staining on Paraffin-embedded Slides of pT3N0M0 Gastric Cancer Tissue

Published on: May 1, 2019

7.4K

Related Experiment Videos

Last Updated: Feb 1, 2026

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide
09:52

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide

Published on: January 15, 2017

17.9K
Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis
08:25

Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis

Published on: September 26, 2022

3.5K
Elastic Staining on Paraffin-embedded Slides of pT3N0M0 Gastric Cancer Tissue
06:36

Elastic Staining on Paraffin-embedded Slides of pT3N0M0 Gastric Cancer Tissue

Published on: May 1, 2019

7.4K

Area of Science:

  • Biomechanics
  • Computational Modeling
  • Orthopedic Surgery

Background:

  • Modeling joint contact forces in OpenSim is not well understood.
  • Accurate simulation of joint mechanics is crucial for understanding natural and prosthetic joint function.

Purpose of the Study:

  • To systematically investigate variables of the elastic foundation contact model in OpenSim.
  • To determine tuning parameters for total knee replacement (TKR) implants.
  • To assess the model's performance with varying material stiffness and mesh density.

Main Methods:

  • Performed controlled benchtop experiments and simulations of metal-on-plastic interactions, including a TKR model.
  • Recorded load-displacement curves during cyclic loading.
  • Utilized a hybrid optimization algorithm to determine contact model coefficients.
  • Performed sensitivity analysis on material stiffness and mesh density using eTibia TKR renderings.

Main Results:

  • Identified stiffness and dissipation coefficients for TKR implants (1.52 × 10^10 N/m and 57.7 Ns/m).
  • Contact force estimations showed a 10.2% error compared to experimental data.
  • Higher material stiffness (10^13–10^15 N/m) increased computation time significantly (12–23x).
  • Tuned model penetration (0.300 mm) was comparable to a standard eTibia model (0.259 mm) under specific load conditions.

Conclusions:

  • Provides clarity on using the OpenSim elastic foundation (EF) algorithm for joint contact modeling.
  • Demonstrates OpenSim's utility for modeling deformable materials and complex geometries.
  • The approach is adaptable for estimating forces in natural and surgically modified joints.