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 Experiment Videos

A mechanical model for the human intervertebral disc.

N D Panagiotacopulos1, M H Pope, M H Krag

  • 1Department of Electrical Engineering, California State University, Long Beach.

Journal of Biomechanics
|January 1, 1987
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

In-situ formation of glyphosate and AMPA in activated sludge from phosphonates used as antiscalants and bleach stabilizers in households and industry.

Water research·2025
Same author

Effects of whole body vibration on spinal proprioception in healthy individuals.

Work (Reading, Mass.)·2018
Same author

Height changes due to autotraction.

Clinical biomechanics (Bristol, Avon)·2013
Same author

In vivo measurement of intervertebral creep: a preliminary report.

Clinical biomechanics (Bristol, Avon)·2013
Same author

Variations in the examination of the medial collateral ligament of the knee.

Clinical biomechanics (Bristol, Avon)·2013
Same author

Comparative study of fracture gap motion in external fixation.

Clinical biomechanics (Bristol, Avon)·2013
Same journal

Influence of iliofemoral ligament laxity on hip joint contact forces during gait.

Journal of biomechanics·2026
Same journal

Associations of sagittal spinal alignment with shear wave velocity, thickness, and echo intensity of muscles attached to the spine and pelvis in healthy women.

Journal of biomechanics·2026
Same journal

The gait lab effect: symmetry restoration strategy after anterior cruciate ligament reconstruction is different in natural environments than the gait laboratory.

Journal of biomechanics·2026
Same journal

Mediolateral trunk control, rather than temporal gait control, is associated with treadmill walking adaptation in healthy older adults.

Journal of biomechanics·2026
Same journal

Examination of participant sex bias in international society of biomechanics conference abstract submissions: patterns across cohorts, countries, and contexts.

Journal of biomechanics·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
See all related articles

Human intervertebral disc (IVD) mechanics were studied using stress relaxation tests. Moisture content significantly impacts IVD relaxation properties, influencing models for disc degeneration and hydration-dependent conditions.

Area of Science:

  • Biomedical Engineering
  • Biomechanics
  • Materials Science

Background:

  • The human intervertebral disc (IVD) is a complex biological structure crucial for spinal function.
  • Understanding the mechanical properties of the IVD, particularly its viscoelastic behavior, is essential for diagnosing and treating spinal disorders.

Purpose of the Study:

  • To investigate the stress relaxation behavior of human intervertebral disc components under varying moisture conditions.
  • To develop a predictive model for IVD mechanical response based on experimental data.

Main Methods:

  • Stress relaxation experiments were conducted on human nucleus pulposus and anulus fibrosus lamellae specimens.
  • Tests were performed across a range of moisture contents to generate relaxation master curves.

Related Experiment Videos

  • A constitutive model was formulated based on the acquired experimental data.

    • Main Results:

    • Short-term relaxation master curves for the anulus fibrosus and nucleus pulposus were found to be similar.
    • Significant differences were observed in the long-term rubbery plateau between the anulus and nucleus.
    • Water content variations caused time-domain shifts in the master curves for different disc components.

    Conclusions:

    • The developed model captures the viscoelastic properties of the IVD, considering moisture content.
    • This model is applicable to studying conditions like Schmorl's nodes, disc degeneration, and hydration-sensitive pathologies.
    • The distinct long-term mechanical behavior of the anulus and nucleus highlights their specialized roles within the IVD structure.