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

Deformation of Member under Multiple Loadings01:11

Deformation of Member under Multiple Loadings

502
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
502
Temperature Dependent Deformation01:12

Temperature Dependent Deformation

433
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
433
Normal Strain under Axial Loading01:20

Normal Strain under Axial Loading

1.3K
Normal strain under axial loading is an important concept in the field of mechanics of materials. Axial loading implies the application of a force along the axis of a material, like a column or bar. This force can either compress or stretch the material. In the context of axial loading, normal strain is the deformation experienced by the material in the direction of the loading force. It's calculated as the change in length divided by the original length of the material. This unitless ratio...
1.3K
Deformation of a Beam under Transverse Loading01:15

Deformation of a Beam under Transverse Loading

795
Understanding beam deflection, particularly for indeterminate beams with overhanging segments and multiple concentrated loads, is crucial for ensuring structural integrity and functionality. The process begins with constructing an accurate free-body diagram, which helps identify the forces and moments acting on the beam. This diagram is vital for visualizing how bending moments vary along the beam's length, influencing its curvature.
The insights from the bending moment diagram extend to...
795
Deformations in a Transverse Cross Section01:21

Deformations in a Transverse Cross Section

665
When a material is subjected to uniaxial stress, it elongates or contracts in the direction of the applied force, and also undergoes changes in the perpendicular directions. This behavior is crucial for understanding how materials behave under stress and is governed by mechanical properties such as Poisson's ratio v, which measures the ratio of transverse strain to axial strain.
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
665
Effects of Creep01:25

Effects of Creep

471
Creep in concrete, the gradual deformation under prolonged stress, significantly impacts the integrity of structures. For reinforced concrete beams, it can be a vital design consideration, as it increases deflection, sometimes necessitating additional design measures. In columns, especially slender ones under eccentric loads, creep can cause buckling, compromising their stability. However, creep can be beneficial in indeterminate structures by mitigating stresses that arise from shrinkage,...
471

You might also read

Related Articles

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

Sort by
Same author

Effect of foot orthoses on the biomechanics of stair ascent and descent in chronic metatarsalgia.

Journal of biomechanics·2026
Same author

Motor control exercise program versus standard care in the treatment of lumbopelvic pain in pregnant women: a randomized controlled pilot trial.

Chiropractic & manual therapies·2026
Same author

Associations Between Anthropometrics, Physical Determinants, and Batting Exit Speed in Elite Female Baseball Athletes.

Journal of strength and conditioning research·2026
Same author

Effects of 2 Interventions on the Acceptability and Usability of a Sensing Glove for Measuring Force-Time Characteristics of Chiropractic Spinal Manipulative Therapy: A Crossover Study.

Journal of chiropractic medicine·2026
Same author

The Effects of Lumbar Delayed Onset Muscle Soreness on Clinical, Biomechanical and Neuromuscular Outcomes: A Systematic Review and Meta-Analysis.

European journal of pain (London, England)·2026
Same author

Comparing physical activity practice, pain and psychological characteristics in individuals with fibromyalgia and individuals with low back pain.

Chiropractic & manual therapies·2026

Related Experiment Video

Updated: Feb 19, 2026

Method to Measure Tone of Axial and Proximal Muscle
10:41

Method to Measure Tone of Axial and Proximal Muscle

Published on: December 14, 2011

18.0K

Trunk proprioception adaptations to creep deformation.

Jacques Abboud1, Benjamin Rousseau2, Martin Descarreaux2

  • 1Département d'Anatomie, Université du Québec à Trois-Rivières, 3351, boul. des Forges, C.P. 500, Trois-Rivières, QC, G9A 5H7, Canada. jacques.abboud@uqtr.ca.

European Journal of Applied Physiology
|November 9, 2017
PubMed
Summary

Prolonged trunk flexion impairs trunk repositioning sense, especially at smaller movements. This reduced proprioception may increase the risk of spinal instability and injury.

Keywords:
ElectromyographyErector spinaeRepositioning taskSensory motor controlSpinal stability

More Related Videos

Experimental Methods to Study Human Postural Control
08:12

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

10.1K
Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics
14:14

Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics

Published on: April 16, 2017

12.0K

Related Experiment Videos

Last Updated: Feb 19, 2026

Method to Measure Tone of Axial and Proximal Muscle
10:41

Method to Measure Tone of Axial and Proximal Muscle

Published on: December 14, 2011

18.0K
Experimental Methods to Study Human Postural Control
08:12

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

10.1K
Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics
14:14

Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics

Published on: April 16, 2017

12.0K

Area of Science:

  • Biomechanics
  • Human Movement Science
  • Spinal Physiology

Background:

  • Spinal tissue creep, a viscoelastic response to sustained load, can affect sensorimotor control.
  • Understanding creep's impact on trunk proprioception is crucial for injury prevention.

Purpose of the Study:

  • To investigate the immediate effects of spinal tissue creep on the accuracy of trunk repositioning sense.
  • To determine if creep deformation alters trunk movement time and muscle activity.

Main Methods:

  • Twenty healthy participants underwent a 20-minute static trunk flexion to induce creep.
  • Trunk repositioning accuracy, movement time, and erector spinae activity were measured before and after creep for 20° and 30° extension tasks.

Main Results:

  • Trunk repositioning errors and movement time increased with larger (30°) extensions pre-creep.
  • Post-creep, errors significantly increased for smaller (20°) extensions.
  • Erector spinae activity increased post-creep but was consistent across movement tasks.

Conclusions:

  • Spinal tissue creep significantly alters trunk repositioning sense, particularly in smaller ranges of motion.
  • Reduced proprioception acuity following creep may elevate the risk of spinal instability and subsequent injury.
  • These findings highlight the importance of considering creep effects in rehabilitation and injury prevention strategies.